CVE-2021-43612

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

• ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
• AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
• Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

1.14% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 64.4% of scored records. A rank, not a probability.

NVD base score

7.5 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

NVD analysis status

Modified. NVD last modified this record on 2026-06-17.

Red Hat severity

Moderate. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2023-04-15 00:00Z3 YR AGO

Last updated

2025-02-13 16:28Z1 YR AGO

Reserved

2021-11-12

Assigning CNA

mitre

Record state

PUBLISHED

Severity

High (CVSS 7.5)

CNA CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weaknesses

• CWE-787Out-of-bounds WriteBase
• CWE-125Out-of-bounds ReadBase

Data version

5.1

Document digest

626366ebfb1f64482302c7078f007ebfde5935a0e43519ecf8fed8d4cb7595ee

• lldpd.github.iohttps://lldpd.github.io/security.html
• github.comhttps://github.com/lldpd/lldpd/commit/73d42680fce8598324364dbb31b9bc3b8320adf7
• github.comhttps://github.com/lldpd/lldpd/compare/1.0.12...1.0.13
• lists.fedoraproject.orgFEDORA-2023-88991d2713https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JYA4AMJXCNF6UPFG36L2TPPT32C242SP/vendor-advisory
• lists.fedoraproject.orgFEDORA-2023-c0c184a019https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3T5XHPOGIPWCRRPJUE6P3HVC5PTSD5JS/vendor-advisory
• lists.fedoraproject.orgFEDORA-2023-3e4feeadechttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SKQWHG2SZJZSGC7PXVDAEJYBN7ESDR7D/vendor-advisory