CVE-2022-26126
Buffer overflow vulnerabilities exist in FRRouting through 8.1.0 due to the use of strdup with a...
Buffer overflow vulnerabilities exist in FRRouting through 8.1.0 due to the use of strdup with a non-zero-terminated binary string in isis_nb_notifications.c.
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Required
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
Buffer overflow vulnerabilities exist in FRRouting through 8.1.0 due to the use of strdup with a non-zero-terminated binary string in isis_nb_notifications.c.
- Record
CVE-2022-26126- CVSS 3.1
- 7.8 High
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - CVSS 2.0
- 6.8 Medium
AV:N/AC:M/Au:N/C:P/I:P/A:P - Weakness
- CWE-119
- Updated
- 2026-11-02
CVE List No score
Buffer overflow vulnerabilities exist in FRRouting through 8.1.0 due to the use of strdup with a non-zero-terminated binary string in isis_nb_notifications.c.
- Record
CVE-2022-26126- Weakness
- CWE-119
- Updated
- 2026-11-02
EUVDEUVD-2022-30693 No score
Buffer overflow vulnerabilities exist in FRRouting through 8.1.0 due to the use of strdup with a non-zero-terminated binary string in isis_nb_notifications.c.
- Record
EUVD-2022-30693- Updated
- 2026-11-02
GitHub AdvisoriesGHSA-mv8p-w8jf-x9q9
Buffer overflow vulnerabilities exist in FRRouting through 8.1.0 due to the use of strdup with a...
Buffer overflow vulnerabilities exist in FRRouting through 8.1.0 due to the use of strdup with a non-zero-terminated binary string in isis_nb_notifications.c.
- Record
GHSA-mv8p-w8jf-x9q9- CVSS 3.1
- 7.8 High
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - Weakness
- CWE-119
- Updated
- 2026-11-02
OSVALPINE-CVE-2022-26126
Buffer overflow vulnerabilities exist in FRRouting through 8.1.0 due to the use of strdup with a non-zero-terminated binary string in isis_nb_notifications.c.
- Record
ALPINE-CVE-2022-26126- CVSS 3.1
- 7.8 High
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - Updated
- 2026-11-03
OSVDEBIAN-CVE-2022-26126
Buffer overflow vulnerabilities exist in FRRouting through 8.1.0 due to the use of strdup with a non-zero-terminated binary string in isis_nb_notifications.c.
- Record
DEBIAN-CVE-2022-26126- CVSS 3.1
- 7.8 High
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - Updated
- 2026-11-03
Show 6 moreShow less
OSVUBUNTU-CVE-2022-26126
Buffer overflow vulnerabilities exist in FRRouting through 8.1.0 due to the use of strdup with a non-zero-terminated binary string in isis_nb_notifications.c.
- Record
UBUNTU-CVE-2022-26126- CVSS 3.1
- 7.8 High
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
OSV No score
Buffer overflow vulnerabilities exist in FRRouting through 8.1.0 due to the use of strdup with a non-zero-terminated binary string in isis_nb_notifications.c.
- Record
CVE-2022-26126- Weakness
- CWE-119
- Updated
- 2026-11-02
OSVopenSUSE-SU-2022:0901-1 No score
Security update for frr
This update for frr fixes the following issues:
- CVE-2022-26125, CVE-2022-26126: Fixed buffer overflows in unpack_tlv_router_cap() (bsc#1196505, bsc#1196506).
- CVE-2022-26127: Fixed heap buffer overflow in babel_packet_examin() (bsc#1196503).
- CVE-2022-26128: Fixed buffer overflows in babel_packet_examin() (bsc#1196507).
- CVE-2022-26129: Fixed buffer overflows in parse_hello_subtlv(), parse_ihu_subtlv() and parse_update_subtlv() (bsc#1196504).
- Record
openSUSE-SU-2022:0901-1- Updated
- 2026-11-02
OSVopenSUSE-SU-2024:11880-1 No score
frr-8.1-3.1 on GA media
These are all security issues fixed in the frr-8.1-3.1 package on the GA media of openSUSE Tumbleweed.
- Record
openSUSE-SU-2024:11880-1- Updated
- 2026-11-02
OSVSUSE-SU-2022:0901-1 No score
Security update for frr
This update for frr fixes the following issues:
- CVE-2022-26125, CVE-2022-26126: Fixed buffer overflows in unpack_tlv_router_cap() (bsc#1196505, bsc#1196506).
- CVE-2022-26127: Fixed heap buffer overflow in babel_packet_examin() (bsc#1196503).
- CVE-2022-26128: Fixed buffer overflows in babel_packet_examin() (bsc#1196507).
- CVE-2022-26129: Fixed buffer overflows in parse_hello_subtlv(), parse_ihu_subtlv() and parse_update_subtlv() (bsc#1196504).
- Record
SUSE-SU-2022:0901-1- Updated
- 2026-11-02
OSVUSN-6807-1 No score
frr vulnerabilities
It was discovered that FRR incorrectly handled certain network traffic. A remote attacker could possibly use this issue to cause FRR to crash, resulting in a denial of service. (CVE-2022-26126, CVE-2022-26127, CVE-2022-26128, CVE-2022-26129, CVE-2022-37032, CVE-2022-37035, CVE-2023-31490, CVE-2023-38406, CVE-2023-38407, CVE-2023-46752, CVE-2023-46753, CVE-2023-47234, CVE-2023-47235, CVE-2024-31948)
Ben Cartwright-Cox discovered that FRR incorrectly handled certain network traffic. A remote attacker could possibly use this issue to cause FRR to crash, resulting in a denial of service. (CVE-2023-38802)
- Record
USN-6807-1- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
frrAlpine:v3.16 |
before 8.2.1-r0 | 8.2.1-r0 |
frrAlpine:v3.17 |
before 8.2.1-r0 | 8.2.1-r0 |
frrAlpine:v3.18 |
before 8.2.1-r0 | 8.2.1-r0 |
frrAlpine:v3.19 |
before 8.2.1-r0 | 8.2.1-r0 |
frrAlpine:v3.20 |
before 8.2.1-r0 | 8.2.1-r0 |
frrAlpine:v3.21 |
before 8.2.1-r0 | 8.2.1-r0 |
frrAlpine:v3.22 |
before 8.2.1-r0 | 8.2.1-r0 |
frrAlpine:v3.23 |
before 8.2.1-r0 | 8.2.1-r0 |
frrAlpine:v3.24 |
before 8.2.1-r0 | 8.2.1-r0 |
frrDebian:12 |
before 8.4.1-1 | 8.4.1-1 |
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| Package | Affected | Fixed |
|---|---|---|
frrDebian:13 |
before 8.4.1-1 | 8.4.1-1 |
frrDebian:14 |
before 8.4.1-1 | 8.4.1-1 |
frrDebian:10 |
before 7.5.1-1.1+deb10u2, plus listed versions 6.0.2-26.0.2-2+deb10u16.0.2-2+deb10u27.2-17.2.1-1 Show 8 moreShow less7.3.1-17.4-17.4-1.17.4-27.5-17.5.1-17.5.1-1.17.5.1-1.1+deb10u1 |
7.5.1-1.1+deb10u2 |
frrDebian:11 |
before 7.5.1-1.1+deb11u3, plus listed versions 7.5.1-1.17.5.1-1.1+deb11u17.5.1-1.1+deb11u2 |
7.5.1-1.1+deb11u3 |
frrSUSE:Linux Enterprise Module for Server Applications 15 SP3 |
before 7.4-150300.4.3.1 | 7.4-150300.4.3.1 |
frrUbuntu:Pro:20.04:LTS |
before 7.2.1-1ubuntu0.2+esm2, plus listed versions 6.0.2-2build27.2-1ubuntu17.2-1ubuntu27.2.1-17.2.1-1ubuntu0.17.2.1-1ubuntu0.27.2.1-1ubuntu0.2+esm1 |
7.2.1-1ubuntu0.2+esm2 |
frrUbuntu:22.04:LTS |
before 8.1-1ubuntu1, plus listed versions 7.5.1-1.18.1-1 |
8.1-1ubuntu1 |
frropenSUSE:Leap 15.3 |
before 7.4-150300.4.3.1 | 7.4-150300.4.3.1 |
frropenSUSE:Tumbleweed |
before 8.1-3.1 | 8.1-3.1 |
History
| Recorded | Changed | Sources |
|---|---|---|
| affected, aliases, references | OSV | |
| first indexed | CVE List, EUVD, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2022-26126 is a high vulnerability (CVSS 7.8) in Frrouting, published March 3, 2022. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.08%, the 65th percentile. Fixed in frr 8.2.1-r0.
References
github.com/FRRouting/frr/issues/10505
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XUCZR6RYQVZ35BFUV7OLIUEHZW2433I2
lists.debian.org/debian-lts-announce/2024/04/msg00019.html
Show 38 moreShow less
nvd.nist.gov/vuln/detail/CVE-2022-26126
security.alpinelinux.org/vuln/CVE-2022-26126
security-tracker.debian.org/tracker/CVE-2022-26126
suse.com/support/update/announcement/2022/suse-su-20220901-1
bugzilla.suse.com/1180217
ubuntu.com/security/CVE-2022-26126
cve.org/CVERecord?id=CVE-2022-26126
lists.opensuse.org/archives/list/[email protected]/thread/IMU2X5TQEN42TVGMLEB32I5WD3N5Z2FU