9.8

CVE-2024-45237: nicmx fort-validator Classic Buffer Overflow

CVSS: 9.8v3.1CriticalModified
AliasesUBUNTU-CVE-2024-45237DEBIAN-CVE-2024-45237
Published 24-08-2024Last modified 03-11-2025
Open JSON

Vulnerability summary

CVE-2024-45237 is a critical (CVSS 9.8) Classic Buffer Overflow vulnerability in nicmx fort-validator. EPSS estimates a 0.36% chance of exploitation in the next 30 days, higher than 28% of scored vulnerabilities.

Overall risk
70/100
0100
High · default modelHow is this calculated?
CVSS score
9.8/10
010
Critical · v3.1 (CVE.org)
EPSS score
0.36%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 2 · Related 1
DLA-4066-1USN-7813-1

Timeline

  1. 24-08-2024
    PublishedVulnerability first disclosed.
  2. 03-11-2025
    Last modifiedVulnerability information updated.

Description

An issue was discovered in Fort before 1.6.3. A malicious RPKI repository that descends from a (trusted) Trust Anchor can serve (via rsync or RRDP) a resource certificate containing a Key Usage extension composed of more than two bytes of data. Fort writes this string into a 2-byte buffer without properly sanitizing its length, leading to a buffer overflow.

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.36%

Chance of exploitation in the next 30 days

Percentile

28%

Versus all other CVEs

30-day change

0.00 pp

From 0.36% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.36%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Debian1 product
  • fort-validator< 1.5.4-1+deb12u1 | < 1.6.3-1
Nicmx1 product
Ubuntu1 product
  • fort-validator< 1.2.0-1ubuntu0.1~esm1 | < 1.5.3-1ubuntu0.1 | < 1.6.1-1ubuntu0.1~esm2

3 vendors · 3 products

References

6 links