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CVE-2026-7736

A vulnerability was determined in osrg GoBGP up to 4.3.0. Affected by this vulnerability is the function parseRibEntry of the file pkg/packet/mrt/mrt.go. Executing a manipulation can lead to integer underflow. It is possible to launch the attack remotely. Upgrading to version 4.4.0 addresses this issue. This patch is called 76d911046344a3923cbe573364197aa081944592. It is suggested to upgrade the affected component.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:de6ad9f6f1c99ad5c9a40fb5df85699b0ac6416682de8fb2a279ae16b97e7f70
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
2

Preserved source conflicts

No provider value was silently selected as the winner.

cvss · 4 assertions

{"metric":{"baseScore":6.9,"baseSeverity":"MEDIUM","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X","version":"4.0"},"metric_type":"cvssV4_0"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:c82003f67ec09bcc33321dc7eef2baf9f33afb6dc7bdd29a2585096192cac3d5 · sha256:48c255c4f66b461d… · /containers/cna/metrics/0/cvssV4_0

{"metric":{"baseScore":7.3,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:X/RL:O/RC:C","version":"3.1"},"metric_type":"cvssV3_1"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:c82003f67ec09bcc33321dc7eef2baf9f33afb6dc7bdd29a2585096192cac3d5 · sha256:48c255c4f66b461d… · /containers/cna/metrics/1/cvssV3_1

{"metric":{"baseScore":7.3,"baseSeverity":"HIGH","vectorString":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:X/RL:O/RC:C","version":"3.0"},"metric_type":"cvssV3_0"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:c82003f67ec09bcc33321dc7eef2baf9f33afb6dc7bdd29a2585096192cac3d5 · sha256:48c255c4f66b461d… · /containers/cna/metrics/2/cvssV3_0

{"metric":{"baseScore":7.5,"vectorString":"AV:N/AC:L/Au:N/C:P/I:P/A:P/E:ND/RL:OF/RC:C","version":"2.0"},"metric_type":"cvssV2_0"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:c82003f67ec09bcc33321dc7eef2baf9f33afb6dc7bdd29a2585096192cac3d5 · sha256:48c255c4f66b461d… · /containers/cna/metrics/3/cvssV2_0
cwe · 2 assertions

{"cweId":"CWE-189","description":"Numeric Error","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:c82003f67ec09bcc33321dc7eef2baf9f33afb6dc7bdd29a2585096192cac3d5 · sha256:48c255c4f66b461d… · /containers/cna/problemTypes/1/descriptions/0

{"cweId":"CWE-191","description":"Integer Underflow","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:c82003f67ec09bcc33321dc7eef2baf9f33afb6dc7bdd29a2585096192cac3d5 · sha256:48c255c4f66b461d… · /containers/cna/problemTypes/0/descriptions/0

Affected products and versions

1 source assertion
{"cpes":["cpe:2.3:a:osrg:gobgp:*:*:*:*:*:*:*:*"],"product":"GoBGP","vendor":"osrg","versions":[{"status":"affected","version":"4.0"},{"status":"affected","version":"4.1"},{"status":"affected","version":"4.2"},{"status":"affected","version":"4.3.0"},{"status":"unaffected","version":"4.4.0"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:c82003f67ec09bcc33321dc7eef2baf9f33afb6dc7bdd29a2585096192cac3d5 · sha256:48c255c4f66b461d… · /containers/cna/affected/0

Provider-owned CVSS observations

4 source assertions
{"metric":{"baseScore":6.9,"baseSeverity":"MEDIUM","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X","version":"4.0"},"metric_type":"cvssV4_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:c82003f67ec09bcc33321dc7eef2baf9f33afb6dc7bdd29a2585096192cac3d5 · sha256:48c255c4f66b461d… · /containers/cna/metrics/0/cvssV4_0
{"metric":{"baseScore":7.3,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:X/RL:O/RC:C","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:c82003f67ec09bcc33321dc7eef2baf9f33afb6dc7bdd29a2585096192cac3d5 · sha256:48c255c4f66b461d… · /containers/cna/metrics/1/cvssV3_1
{"metric":{"baseScore":7.3,"baseSeverity":"HIGH","vectorString":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:X/RL:O/RC:C","version":"3.0"},"metric_type":"cvssV3_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:c82003f67ec09bcc33321dc7eef2baf9f33afb6dc7bdd29a2585096192cac3d5 · sha256:48c255c4f66b461d… · /containers/cna/metrics/2/cvssV3_0
{"metric":{"baseScore":7.5,"vectorString":"AV:N/AC:L/Au:N/C:P/I:P/A:P/E:ND/RL:OF/RC:C","version":"2.0"},"metric_type":"cvssV2_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:c82003f67ec09bcc33321dc7eef2baf9f33afb6dc7bdd29a2585096192cac3d5 · sha256:48c255c4f66b461d… · /containers/cna/metrics/3/cvssV2_0

CWE assertions

2 source assertions
{"cweId":"CWE-189","description":"Numeric Error","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:c82003f67ec09bcc33321dc7eef2baf9f33afb6dc7bdd29a2585096192cac3d5 · sha256:48c255c4f66b461d… · /containers/cna/problemTypes/1/descriptions/0
{"cweId":"CWE-191","description":"Integer Underflow","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:c82003f67ec09bcc33321dc7eef2baf9f33afb6dc7bdd29a2585096192cac3d5 · sha256:48c255c4f66b461d… · /containers/cna/problemTypes/0/descriptions/0

Source references

6 source assertions
{"tags":["product"],"url":"https://github.com/osrg/gobgp/"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:c82003f67ec09bcc33321dc7eef2baf9f33afb6dc7bdd29a2585096192cac3d5 · sha256:48c255c4f66b461d… · /containers/cna/references/5
{"tags":["patch"],"url":"https://github.com/osrg/gobgp/commit/76d911046344a3923cbe573364197aa081944592"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:c82003f67ec09bcc33321dc7eef2baf9f33afb6dc7bdd29a2585096192cac3d5 · sha256:48c255c4f66b461d… · /containers/cna/references/3
{"tags":["patch"],"url":"https://github.com/osrg/gobgp/releases/tag/v4.4.0"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:c82003f67ec09bcc33321dc7eef2baf9f33afb6dc7bdd29a2585096192cac3d5 · sha256:48c255c4f66b461d… · /containers/cna/references/4
{"name":"Submit #807604 | osrg GoBGP <= 4.3.0 Integer Underflow","tags":["third-party-advisory"],"url":"https://vuldb.com/submit/807604"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:c82003f67ec09bcc33321dc7eef2baf9f33afb6dc7bdd29a2585096192cac3d5 · sha256:48c255c4f66b461d… · /containers/cna/references/2
{"name":"VDB-360911 | osrg GoBGP mrt.go parseRibEntry integer underflow","tags":["vdb-entry","technical-description"],"url":"https://vuldb.com/vuln/360911"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:c82003f67ec09bcc33321dc7eef2baf9f33afb6dc7bdd29a2585096192cac3d5 · sha256:48c255c4f66b461d… · /containers/cna/references/0
{"name":"VDB-360911 | CTI Indicators (IOB, IOC, IOA)","tags":["signature","permissions-required"],"url":"https://vuldb.com/vuln/360911/cti"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:c82003f67ec09bcc33321dc7eef2baf9f33afb6dc7bdd29a2585096192cac3d5 · sha256:48c255c4f66b461d… · /containers/cna/references/1

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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