Out-of-bounds Read in Frrouting Frr
CVE-2026-28532
FRRouting before 10.5.3 contains an integer overflow vulnerability in seven OSPF Traffic Engineering and Segment Routing TLV parser functions where a uint16_t accumulator variable truncates uint32_t values returned by the TLV_SIZE() macro…
Vulnerability class: Buffer Overflow
EPSS: 0.000 (5.7th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Frrouting Frr — versions 0
- Frrouting
Weakness classification (CWE)
References
- disclosure@vulncheck.com (release-notes, Release Notes)
- disclosure@vulncheck.com (issue-tracking, Patch, Issue Tracking)
- disclosure@vulncheck.com (Patch, patch)
- disclosure@vulncheck.com (Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2026-28532?
- CVE-2026-28532 is a medium-severity vulnerability in Frrouting Frr, classified under Out-of-bounds Read. CVSS score: 6.5/10. Published 2026-04-30.
- How severe is CVE-2026-28532?
- Medium severity. CVSS v3 base score is 6.5 out of 10.