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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, causing the loop termination condition to fail while pointer advancement continues unchecked. Attackers with an established OSPF adjacency can send a crafted LS Update packet with a malicious Type 10 or Type 11 Opaque LSA to trigger out-of-bounds memory reads
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:720964e3c625cd5a2a2ad45592a6b5d13f6fd3a9da641a1ee2bc9c2b4e78b649
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
2

Preserved source conflicts

No provider value was silently selected as the winner.

cvss · 2 assertions

{"metric":{"attackComplexity":"LOW","attackVector":"ADJACENT_NETWORK","availabilityImpact":"HIGH","baseScore":6.5,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"metric_type":"cvssV3_1"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:431d34b008c5ff82190323c6e3cbf79ba1c2d6dbbbca0f850018b1350823a106 · sha256:687661bee7184aa8… · /containers/cna/metrics/1/cvssV3_1

{"metric":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"PRESENT","attackVector":"ADJACENT","baseScore":6,"baseSeverity":"MEDIUM","privilegesRequired":"NONE","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","valueDensity":"NOT_DEFINED","vectorString":"CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"HIGH","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":…

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:431d34b008c5ff82190323c6e3cbf79ba1c2d6dbbbca0f850018b1350823a106 · sha256:687661bee7184aa8… · /containers/cna/metrics/0/cvssV4_0
cwe · 2 assertions

{"cweId":"CWE-190","description":"CWE-190: Integer Overflow or Wraparound","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:431d34b008c5ff82190323c6e3cbf79ba1c2d6dbbbca0f850018b1350823a106 · sha256:687661bee7184aa8… · /containers/cna/problemTypes/0/descriptions/0

{"cweId":"CWE-125","description":"CWE-125: Out-of-bounds Read","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:431d34b008c5ff82190323c6e3cbf79ba1c2d6dbbbca0f850018b1350823a106 · sha256:687661bee7184aa8… · /containers/cna/problemTypes/0/descriptions/1

Affected products and versions

1 source assertion
{"defaultStatus":"affected","product":"frr","vendor":"FRRouting","versions":[{"lessThan":"10.5.3","status":"affected","version":"0","versionType":"semver"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:431d34b008c5ff82190323c6e3cbf79ba1c2d6dbbbca0f850018b1350823a106 · sha256:687661bee7184aa8… · /containers/cna/affected/0

Provider-owned CVSS observations

2 source assertions
{"metric":{"attackComplexity":"LOW","attackVector":"ADJACENT_NETWORK","availabilityImpact":"HIGH","baseScore":6.5,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:431d34b008c5ff82190323c6e3cbf79ba1c2d6dbbbca0f850018b1350823a106 · sha256:687661bee7184aa8… · /containers/cna/metrics/1/cvssV3_1
{"metric":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"PRESENT","attackVector":"ADJACENT","baseScore":6,"baseSeverity":"MEDIUM","privilegesRequired":"NONE","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","valueDensity":"NOT_DEFINED","vectorString":"CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"HIGH","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":…
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:431d34b008c5ff82190323c6e3cbf79ba1c2d6dbbbca0f850018b1350823a106 · sha256:687661bee7184aa8… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

2 source assertions
{"cweId":"CWE-190","description":"CWE-190: Integer Overflow or Wraparound","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:431d34b008c5ff82190323c6e3cbf79ba1c2d6dbbbca0f850018b1350823a106 · sha256:687661bee7184aa8… · /containers/cna/problemTypes/0/descriptions/0
{"cweId":"CWE-125","description":"CWE-125: Out-of-bounds Read","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:431d34b008c5ff82190323c6e3cbf79ba1c2d6dbbbca0f850018b1350823a106 · sha256:687661bee7184aa8… · /containers/cna/problemTypes/0/descriptions/1

Source references

4 source assertions
{"tags":["patch"],"url":"https://github.com/FRRouting/frr/commit/f098decf02987fbf1c891766c1516ac832adadfd"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:431d34b008c5ff82190323c6e3cbf79ba1c2d6dbbbca0f850018b1350823a106 · sha256:687661bee7184aa8… · /containers/cna/references/2
{"tags":["issue-tracking"],"url":"https://github.com/FRRouting/frr/pull/21002"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:431d34b008c5ff82190323c6e3cbf79ba1c2d6dbbbca0f850018b1350823a106 · sha256:687661bee7184aa8… · /containers/cna/references/1
{"tags":["release-notes"],"url":"https://github.com/FRRouting/frr/releases/tag/frr-10.5.3"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:431d34b008c5ff82190323c6e3cbf79ba1c2d6dbbbca0f850018b1350823a106 · sha256:687661bee7184aa8… · /containers/cna/references/0
{"tags":["third-party-advisory"],"url":"https://www.vulncheck.com/advisories/frrouting-integer-overflow-in-ospf-tlv-parser-functions"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:431d34b008c5ff82190323c6e3cbf79ba1c2d6dbbbca0f850018b1350823a106 · sha256:687661bee7184aa8… · /containers/cna/references/3

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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