6.9

CVE-2025-1695: f5 nginx_unit Infinite Loop

CVSS: 6.9v4.0MediumAnalyzed
AliasesCGA-2q95-cfj4-pwf9CGA-hr89-ppxv-f6ccCGA-hwxr-ghwg-968j
Published 04-03-2025Last modified 04-03-2025
Open JSON

Vulnerability summary

CVE-2025-1695 is a medium (CVSS 6.9) Infinite Loop vulnerability in f5 nginx_unit. EPSS estimates a 0.59% chance of exploitation in the next 30 days, higher than 47.2% of scored vulnerabilities.

Overall risk
28/100
0100
Medium · default modelHow is this calculated?
CVSS score
6.9/10
010
Medium · v4.0 (CVE.org)
EPSS score
0.59%
0%100%
Low · +0.01 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 0 · Related 1
CGA-XGCX-G2MJ-63H8

Timeline

  1. 04-03-2025
    PublishedVulnerability first disclosed.
  2. 04-03-2025
    Last modifiedVulnerability information updated.

Description

In NGINX Unit before version 1.34.2 with the Java Language Module in use, undisclosed requests can lead to an infinite loop and cause an increase in CPU resource utilization. This vulnerability allows a remote attacker to cause a degradation that can lead to a limited denial-of-service (DoS).  There is no control plane exposure; this is a data plane issue only.  Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

CVSS metrics

6 scores · 4 sources · 2 versions

EPSS trend

Probability

0.59%

Chance of exploitation in the next 30 days

Percentile

47%

Versus all other CVEs

30-day change

+0.01 pp

From 0.59% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.59%

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

Chainguard2 products
  • nginx-mainlineAll versions (No fix recorded)
  • nginx-stableAll versions (No fix recorded)
Wolfi2 products
  • nginx-mainlineAll versions (No fix recorded)
  • nginx-stableAll versions (No fix recorded)
F51 product
  • nginx_unit≥ 1.11.0, < 1.34.2 | < d7afeb2b94f1cd72ed02403609e5484f9514e5eb | ≥ 1.29.1, < 1.34.2

3 vendors · 5 products

References

1 links