CVE-2022-26127

HIGHNVD 7.87.8—

7.8

A buffer overflow vulnerability exists in FRRouting through 8.1.0 due to missing a check on the input packet length in the babel_packet_examin function in babeld/message.c.

CVSS v3: 7.8
EG Score: 7.8(medium)
EPSS: 26.1%
KEV: Not listed

Published

March 3, 2022

Last Modified

November 4, 2025

References (5)

secalert@redhathttps://github.com/FRRouting/frr/issues/10487
secalert@redhathttps://lists.debian.org/debian-lts-announce/2024/04/msg00019.html
af854a3a-2127-422b-91ae-364da2661108https://github.com/FRRouting/frr/issues/10487
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2024/04/msg00019.html
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2024/09/msg00007.html

Patch Availability(1)

Vendor / Ecosystem	Fixed in / Patch	Released	Source
ubuntu	frr-snmp (7.2.1-1ubuntu0.2+esm2) @ focal	2026-05-23	ubuntu

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Weakness Classification(2)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

All Vendor Advisories

(1)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

UbuntuUSN-6807-1MEDIUM
FRR vulnerabilities

Data Freshness Timeline

(refreshed 8× in last 7d / 8× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-05-27 13:39 UTCepss_batch
2026-05-27 13:39 UTCepss_batch
2026-05-26 13:43 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-23 08:45 UTCEG score recompute
2026-05-23 08:45 UTCVendor advisory
2026-05-23 08:45 UTCGHSA enrichment

Frequently asked(5)

What is CVE-2022-26127?

CVE-2022-26127 is a high vulnerability published on March 3, 2022. A buffer overflow vulnerability exists in FRRouting through 8.1.0 due to missing a check on the input packet length in the babelpacketexamin function in babeld/message.c.

When was CVE-2022-26127 disclosed?

CVE-2022-26127 was first published in the National Vulnerability Database on March 3, 2022, with the most recent update on November 4, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2022-26127 actively exploited?

CVE-2022-26127 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 26.1% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2022-26127?

CVE-2022-26127 has a CVSS v3 base score of 7.8 (NVD).

How do I remediate CVE-2022-26127?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2022-26127, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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CVE-2022-26127

Published

Last Modified

References (5)

Patch Availability(1)

Weakness Classification(2)

All Vendor Advisories

Data Freshness Timeline

Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2022-26127?

Same vendor

Same CWE

CVE-2022-26127

📅 Published

🔄 Last Modified

🔗 References (5)

Patch Availability(1)

Weakness Classification(2)

All Vendor Advisories

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2022-26127?

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Frequently asked(5)

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