Red Hat Product Errata RHSA-2026:83657 - Security Advisory
Issued:
2026-10-15
Updated:
2026-10-15

RHSA-2026:83657 - Security Advisory

Synopsis

Moderate: wireshark security update

Type/Severity

Security Advisory: Moderate

Red Hat Lightspeed patch analysis

Identify and remediate systems affected by this advisory.

View affected systems

Topic

An update for wireshark is now available for Red Hat Enterprise Linux 8.

Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Description

The wireshark packages contain a network protocol analyzer used to capture and browse the traffic running on a computer network.

Security Fix(es):

  • wireshark: Wireshark: Denial of Service via C12.22 protocol dissector crash (CVE-2026-76886)
  • wireshark: Wireshark: Denial of Service via RRC protocol dissector out-of-bounds write (CVE-2026-76880)
  • wireshark: Wireshark: Denial of Service vulnerability in ESS protocol dissector (CVE-2026-76919)
  • wireshark: Wireshark: Denial of Service vulnerability in H.245 protocol dissector (CVE-2026-76927)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Solution

For details on how to apply this update, which includes the changes described in this advisory, refer to:

https://access.redhat.com/articles/11258

Affected Products

  • Red Hat Enterprise Linux for x86_64 8 x86_64
  • Red Hat Enterprise Linux for IBM z Systems 8 s390x
  • Red Hat Enterprise Linux for Power, little endian 8 ppc64le
  • Red Hat Enterprise Linux for ARM 64 8 aarch64
  • Red Hat CodeReady Linux Builder for x86_64 8 x86_64
  • Red Hat CodeReady Linux Builder for Power, little endian 8 ppc64le
  • Red Hat CodeReady Linux Builder for ARM 64 8 aarch64
  • Red Hat CodeReady Linux Builder for IBM z Systems 8 s390x
  • Red Hat Enterprise Linux for x86_64 - Extended Life Cycle 8.10 x86_64
  • Red Hat Enterprise Linux for ARM 64 - Extended Life Cycle 8.10 aarch64
  • Red Hat Enterprise Linux for Power, little endian - Extended Life Cycle 8.10 ppc64le
  • Red Hat Enterprise Linux for IBM z Systems - Extended Life Cycle 8.10 s390x

Fixes

  • BZ - 2520079 - CVE-2026-76886 wireshark: Wireshark: Denial of Service via C12.22 protocol dissector crash
  • BZ - 2520088 - CVE-2026-76880 wireshark: Wireshark: Denial of Service via RRC protocol dissector out-of-bounds write
  • BZ - 2520093 - CVE-2026-76919 wireshark: Wireshark: Denial of Service vulnerability in ESS protocol dissector
  • BZ - 2520103 - CVE-2026-76927 wireshark: Wireshark: Denial of Service vulnerability in H.245 protocol dissector

Red Hat Enterprise Linux for x86_64 8

SRPM
wireshark-2.6.2-21.el8_10.src.rpm SHA-256: d8468a825b7e25fe74ff66b06981437dab1a57eb582c190ad0a3eebf366a8e99
x86_64
wireshark-2.6.2-21.el8_10.x86_64.rpm SHA-256: 029bbc26eb9f129f1f4f443aff869178856e0b74c97e32f0fb71d99d0ed93fd9
wireshark-cli-2.6.2-21.el8_10.i686.rpm SHA-256: 2bcffa6fcb053aa23b25e64037854f853e29ee36d0aa9812a9e7ebf04420b857
wireshark-cli-2.6.2-21.el8_10.x86_64.rpm SHA-256: d1459cc4b0fcaee1fb255d3fac93acfe78334841a6508db85e4bc2a1ad8fac62
wireshark-cli-debuginfo-2.6.2-21.el8_10.i686.rpm SHA-256: 63347b8a6f080d495fc68259d47f185ead053a1e03069fb7dd4d510d54f7681c
wireshark-cli-debuginfo-2.6.2-21.el8_10.x86_64.rpm SHA-256: 83dbadb8d87d569d17251bfa38dfba295d21a03a5101742f32ee3cd35900abf6
wireshark-debuginfo-2.6.2-21.el8_10.i686.rpm SHA-256: 13baf753876816742bfc06cdc9d50b9e1fd4f68a15601688b2797de5a27d94d2
wireshark-debuginfo-2.6.2-21.el8_10.x86_64.rpm SHA-256: 06991cb1ba2a1e63fc35045c745595d761a0620ef459a4fae71669e125532749
wireshark-debugsource-2.6.2-21.el8_10.i686.rpm SHA-256: f5b30d88c5dac7704de81adde5a9d0b818a771ca06019b85fa96d74bceaa9f8f
wireshark-debugsource-2.6.2-21.el8_10.x86_64.rpm SHA-256: fd24134617b94d890ac5a6b261d6c90381ba2d6f2b6d3684d11fbc61476ec2a0

Red Hat Enterprise Linux for IBM z Systems 8

SRPM
wireshark-2.6.2-21.el8_10.src.rpm SHA-256: d8468a825b7e25fe74ff66b06981437dab1a57eb582c190ad0a3eebf366a8e99
s390x
wireshark-2.6.2-21.el8_10.s390x.rpm SHA-256: 7d0a71df0bab0aeed9d172a7d747b407f9830df2a9dad89828a926acea3331b8
wireshark-cli-2.6.2-21.el8_10.s390x.rpm SHA-256: 07d739291e367caa240fd50acffc8b8203aa3ad6014bb9f0ae757a9879a8abf8
wireshark-cli-debuginfo-2.6.2-21.el8_10.s390x.rpm SHA-256: c8d95e0c6586931e5cdda4f291afc86319f0ae55127c2ec44d4aa3450a7fd5bf
wireshark-debuginfo-2.6.2-21.el8_10.s390x.rpm SHA-256: f54b5828e4d30f2f406639b6dac8fcbd3833678f3e46bfc64b4ebecb2afc779d
wireshark-debugsource-2.6.2-21.el8_10.s390x.rpm SHA-256: a8db2ecac628bd91310a5ee94edae4c89b148ad4942a3964ae7846a461b417ae

Red Hat Enterprise Linux for Power, little endian 8

SRPM
wireshark-2.6.2-21.el8_10.src.rpm SHA-256: d8468a825b7e25fe74ff66b06981437dab1a57eb582c190ad0a3eebf366a8e99
ppc64le
wireshark-2.6.2-21.el8_10.ppc64le.rpm SHA-256: f08164f4c9bfe885cf818236a43820a8141128d9d4e9e15d54d192787d1500e1
wireshark-cli-2.6.2-21.el8_10.ppc64le.rpm SHA-256: 51884c3c18b85d6af76d3698658b3be8d9f5c6a559d1cb16fd1bf1281ab3c3e3
wireshark-cli-debuginfo-2.6.2-21.el8_10.ppc64le.rpm SHA-256: acd7280659856cefca6b188267041c3cce1b2667525c507203c5cbe2cdbb6a0c
wireshark-debuginfo-2.6.2-21.el8_10.ppc64le.rpm SHA-256: 0ef2bae0180786219bb2cb963db720ef9863f74d8c9320519e345ab3ec7a0775
wireshark-debugsource-2.6.2-21.el8_10.ppc64le.rpm SHA-256: 82b403fc22b12c2950601ef3e24da577f8a2050986c6bed218e2e168090c1f5b

Red Hat Enterprise Linux for ARM 64 8

SRPM
wireshark-2.6.2-21.el8_10.src.rpm SHA-256: d8468a825b7e25fe74ff66b06981437dab1a57eb582c190ad0a3eebf366a8e99
aarch64
wireshark-2.6.2-21.el8_10.aarch64.rpm SHA-256: d39c3d5d8e2fa9e79becb94ce59d23a49ca56ea18ecdcbe3f3dc3a1d5924d873
wireshark-cli-2.6.2-21.el8_10.aarch64.rpm SHA-256: d890fe5b42be75d16488f77d44f318c15b3799621235b0da77a1bec4a5acca30
wireshark-cli-debuginfo-2.6.2-21.el8_10.aarch64.rpm SHA-256: ca0fd8dea4d0e9353ddfdba71c269b13b5670c62712ff742dceefed26e6c8c88
wireshark-debuginfo-2.6.2-21.el8_10.aarch64.rpm SHA-256: b832f7779e58a35cd7b80553a7faeb557caae1578d692072c157ed131a2f2af9
wireshark-debugsource-2.6.2-21.el8_10.aarch64.rpm SHA-256: 5825f1e01809a7e95f426246479728ccf764b6276ccc2cd7ba5267664a8c8d8a

Red Hat CodeReady Linux Builder for x86_64 8

SRPM
x86_64
wireshark-cli-debuginfo-2.6.2-21.el8_10.i686.rpm SHA-256: 63347b8a6f080d495fc68259d47f185ead053a1e03069fb7dd4d510d54f7681c
wireshark-cli-debuginfo-2.6.2-21.el8_10.x86_64.rpm SHA-256: 83dbadb8d87d569d17251bfa38dfba295d21a03a5101742f32ee3cd35900abf6
wireshark-debuginfo-2.6.2-21.el8_10.i686.rpm SHA-256: 13baf753876816742bfc06cdc9d50b9e1fd4f68a15601688b2797de5a27d94d2
wireshark-debuginfo-2.6.2-21.el8_10.x86_64.rpm SHA-256: 06991cb1ba2a1e63fc35045c745595d761a0620ef459a4fae71669e125532749
wireshark-debugsource-2.6.2-21.el8_10.i686.rpm SHA-256: f5b30d88c5dac7704de81adde5a9d0b818a771ca06019b85fa96d74bceaa9f8f
wireshark-debugsource-2.6.2-21.el8_10.x86_64.rpm SHA-256: fd24134617b94d890ac5a6b261d6c90381ba2d6f2b6d3684d11fbc61476ec2a0
wireshark-devel-2.6.2-21.el8_10.i686.rpm SHA-256: 76dfbc7d883739b26c077877cf58e04f15312a07dd7dddf63a1d09a0e59b4652
wireshark-devel-2.6.2-21.el8_10.x86_64.rpm SHA-256: 02a439285f443540884a9df508aa45c8fff1acba5000c31ead05040c9ada2d60

Red Hat CodeReady Linux Builder for Power, little endian 8

SRPM
ppc64le
wireshark-cli-debuginfo-2.6.2-21.el8_10.ppc64le.rpm SHA-256: acd7280659856cefca6b188267041c3cce1b2667525c507203c5cbe2cdbb6a0c
wireshark-debuginfo-2.6.2-21.el8_10.ppc64le.rpm SHA-256: 0ef2bae0180786219bb2cb963db720ef9863f74d8c9320519e345ab3ec7a0775
wireshark-debugsource-2.6.2-21.el8_10.ppc64le.rpm SHA-256: 82b403fc22b12c2950601ef3e24da577f8a2050986c6bed218e2e168090c1f5b
wireshark-devel-2.6.2-21.el8_10.ppc64le.rpm SHA-256: 6a0138cb3817c4aedfdf33b8f2f6a4d0376f6c4ae933b39b78357e09e08e48c3

Red Hat CodeReady Linux Builder for ARM 64 8

SRPM
aarch64
wireshark-cli-debuginfo-2.6.2-21.el8_10.aarch64.rpm SHA-256: ca0fd8dea4d0e9353ddfdba71c269b13b5670c62712ff742dceefed26e6c8c88
wireshark-debuginfo-2.6.2-21.el8_10.aarch64.rpm SHA-256: b832f7779e58a35cd7b80553a7faeb557caae1578d692072c157ed131a2f2af9
wireshark-debugsource-2.6.2-21.el8_10.aarch64.rpm SHA-256: 5825f1e01809a7e95f426246479728ccf764b6276ccc2cd7ba5267664a8c8d8a
wireshark-devel-2.6.2-21.el8_10.aarch64.rpm SHA-256: 81df934a4c92edc4be4de6a01dbc05e4a33f5f5b3fa548ba3dff0e8bc5739940

Red Hat CodeReady Linux Builder for IBM z Systems 8

SRPM
s390x
wireshark-cli-debuginfo-2.6.2-21.el8_10.s390x.rpm SHA-256: c8d95e0c6586931e5cdda4f291afc86319f0ae55127c2ec44d4aa3450a7fd5bf
wireshark-debuginfo-2.6.2-21.el8_10.s390x.rpm SHA-256: f54b5828e4d30f2f406639b6dac8fcbd3833678f3e46bfc64b4ebecb2afc779d
wireshark-debugsource-2.6.2-21.el8_10.s390x.rpm SHA-256: a8db2ecac628bd91310a5ee94edae4c89b148ad4942a3964ae7846a461b417ae
wireshark-devel-2.6.2-21.el8_10.s390x.rpm SHA-256: 53c9e7de4211368193d1e7d920388d82cbf1d0b10bf9ce2edda261a6e5e2e0b4

Red Hat Enterprise Linux for x86_64 - Extended Life Cycle 8.10

SRPM
wireshark-2.6.2-21.el8_10.src.rpm SHA-256: d8468a825b7e25fe74ff66b06981437dab1a57eb582c190ad0a3eebf366a8e99
x86_64
wireshark-2.6.2-21.el8_10.x86_64.rpm SHA-256: 029bbc26eb9f129f1f4f443aff869178856e0b74c97e32f0fb71d99d0ed93fd9
wireshark-cli-2.6.2-21.el8_10.i686.rpm SHA-256: 2bcffa6fcb053aa23b25e64037854f853e29ee36d0aa9812a9e7ebf04420b857
wireshark-cli-2.6.2-21.el8_10.x86_64.rpm SHA-256: d1459cc4b0fcaee1fb255d3fac93acfe78334841a6508db85e4bc2a1ad8fac62
wireshark-cli-debuginfo-2.6.2-21.el8_10.i686.rpm SHA-256: 63347b8a6f080d495fc68259d47f185ead053a1e03069fb7dd4d510d54f7681c
wireshark-cli-debuginfo-2.6.2-21.el8_10.x86_64.rpm SHA-256: 83dbadb8d87d569d17251bfa38dfba295d21a03a5101742f32ee3cd35900abf6
wireshark-debuginfo-2.6.2-21.el8_10.i686.rpm SHA-256: 13baf753876816742bfc06cdc9d50b9e1fd4f68a15601688b2797de5a27d94d2
wireshark-debuginfo-2.6.2-21.el8_10.x86_64.rpm SHA-256: 06991cb1ba2a1e63fc35045c745595d761a0620ef459a4fae71669e125532749
wireshark-debugsource-2.6.2-21.el8_10.i686.rpm SHA-256: f5b30d88c5dac7704de81adde5a9d0b818a771ca06019b85fa96d74bceaa9f8f
wireshark-debugsource-2.6.2-21.el8_10.x86_64.rpm SHA-256: fd24134617b94d890ac5a6b261d6c90381ba2d6f2b6d3684d11fbc61476ec2a0

Red Hat Enterprise Linux for ARM 64 - Extended Life Cycle 8.10

SRPM
wireshark-2.6.2-21.el8_10.src.rpm SHA-256: d8468a825b7e25fe74ff66b06981437dab1a57eb582c190ad0a3eebf366a8e99
aarch64
wireshark-2.6.2-21.el8_10.aarch64.rpm SHA-256: d39c3d5d8e2fa9e79becb94ce59d23a49ca56ea18ecdcbe3f3dc3a1d5924d873
wireshark-cli-2.6.2-21.el8_10.aarch64.rpm SHA-256: d890fe5b42be75d16488f77d44f318c15b3799621235b0da77a1bec4a5acca30
wireshark-cli-debuginfo-2.6.2-21.el8_10.aarch64.rpm SHA-256: ca0fd8dea4d0e9353ddfdba71c269b13b5670c62712ff742dceefed26e6c8c88
wireshark-debuginfo-2.6.2-21.el8_10.aarch64.rpm SHA-256: b832f7779e58a35cd7b80553a7faeb557caae1578d692072c157ed131a2f2af9
wireshark-debugsource-2.6.2-21.el8_10.aarch64.rpm SHA-256: 5825f1e01809a7e95f426246479728ccf764b6276ccc2cd7ba5267664a8c8d8a

Red Hat Enterprise Linux for Power, little endian - Extended Life Cycle 8.10

SRPM
wireshark-2.6.2-21.el8_10.src.rpm SHA-256: d8468a825b7e25fe74ff66b06981437dab1a57eb582c190ad0a3eebf366a8e99
ppc64le
wireshark-2.6.2-21.el8_10.ppc64le.rpm SHA-256: f08164f4c9bfe885cf818236a43820a8141128d9d4e9e15d54d192787d1500e1
wireshark-cli-2.6.2-21.el8_10.ppc64le.rpm SHA-256: 51884c3c18b85d6af76d3698658b3be8d9f5c6a559d1cb16fd1bf1281ab3c3e3
wireshark-cli-debuginfo-2.6.2-21.el8_10.ppc64le.rpm SHA-256: acd7280659856cefca6b188267041c3cce1b2667525c507203c5cbe2cdbb6a0c
wireshark-debuginfo-2.6.2-21.el8_10.ppc64le.rpm SHA-256: 0ef2bae0180786219bb2cb963db720ef9863f74d8c9320519e345ab3ec7a0775
wireshark-debugsource-2.6.2-21.el8_10.ppc64le.rpm SHA-256: 82b403fc22b12c2950601ef3e24da577f8a2050986c6bed218e2e168090c1f5b

Red Hat Enterprise Linux for IBM z Systems - Extended Life Cycle 8.10

SRPM
wireshark-2.6.2-21.el8_10.src.rpm SHA-256: d8468a825b7e25fe74ff66b06981437dab1a57eb582c190ad0a3eebf366a8e99
s390x
wireshark-2.6.2-21.el8_10.s390x.rpm SHA-256: 7d0a71df0bab0aeed9d172a7d747b407f9830df2a9dad89828a926acea3331b8
wireshark-cli-2.6.2-21.el8_10.s390x.rpm SHA-256: 07d739291e367caa240fd50acffc8b8203aa3ad6014bb9f0ae757a9879a8abf8
wireshark-cli-debuginfo-2.6.2-21.el8_10.s390x.rpm SHA-256: c8d95e0c6586931e5cdda4f291afc86319f0ae55127c2ec44d4aa3450a7fd5bf
wireshark-debuginfo-2.6.2-21.el8_10.s390x.rpm SHA-256: f54b5828e4d30f2f406639b6dac8fcbd3833678f3e46bfc64b4ebecb2afc779d
wireshark-debugsource-2.6.2-21.el8_10.s390x.rpm SHA-256: a8db2ecac628bd91310a5ee94edae4c89b148ad4942a3964ae7846a461b417ae

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