7.5

CVE-2021-25218: fedoraproject fedora Reachable Assertion

CVSS: 7.5v3.1HighModified
AliasesALPINE-CVE-2021-25218CGA-59c3-84rg-cw7cCGA-77vr-2985-rxcx
Published 18-08-2021Last modified 17-09-2024
Open JSON

Vulnerability summary

CVE-2021-25218 is a high (CVSS 7.5) Reachable Assertion vulnerability in fedoraproject fedora. EPSS estimates a 3.59% chance of exploitation in the next 30 days, higher than 89.2% of scored vulnerabilities. 1 public exploit is recorded.

Overall risk
41/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.5/10
010
High · v3.1 (CVE.org)
EPSS score
3.59%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1reference

Advisory lineage

Upstream 0 · Downstream 1 · Related 3
OPENSUSE-SU-2024:10650-1CGA-CMH4-C22C-2QX9CGA-R2JC-42MM-J2G7

Timeline

  1. 18-08-2021
    PublishedVulnerability first disclosed.
  2. 17-09-2024
    Last modifiedVulnerability information updated.

Description

In BIND 9.16.19, 9.17.16. Also, version 9.16.19-S1 of BIND Supported Preview Edition When a vulnerable version of named receives a query under the circumstances described above, the named process will terminate due to a failed assertion check. The vulnerability affects only BIND 9 releases 9.16.19, 9.17.16, and release 9.16.19-S1 of the BIND Supported Preview Edition.

CVSS metrics

6 scores · 5 sources · 2 versions

EPSS trend

Probability

3.59%

Chance of exploitation in the next 30 days

Percentile

89%

Versus all other CVEs

30-day change

0.00 pp

From 3.59% on 18-09-2026

18-09-202618-10-2026
EPSS score
3.59%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

1 found
  • referenceUnverified

    Exploit Reference (kb.isc.org)

    Maturity: unknown

Weaknesses

CWE · root cause

Affected systems

Isc2 products
  • bind9.16.19 | 9.17.16 | 9.17.16:s1
  • bind9Stable Branch 9.16.19 | Development Branch 9.17.16 | Supported Preview Edition 9.16.19-S1
Alpine1 product
  • bind< 9.16.20-r0
Chainguard1 product
  • bindAll versions (No fix recorded)
Fedoraproject1 product
Wolfi1 product
  • bindAll versions (No fix recorded)

5 vendors · 6 products

References

6 links