4.3

CVE-2026-42528: apache software foundation apache http server

CVSS: 4.3v3.1MediumAnalyzed
AliasesALPINE-CVE-2026-42528UBUNTU-CVE-2026-42528DEBIAN-CVE-2026-42528
Published 01-10-2026Last modified 01-10-2026
Open JSON

Vulnerability summary

CVE-2026-42528 is a medium (CVSS 4.3) vulnerability in apache software foundation apache http server. EPSS estimates a 0.42% chance of exploitation in the next 30 days, higher than 34.4% of scored vulnerabilities.

Overall risk
17/100
0100
Low · default modelHow is this calculated?
CVSS score
4.3/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.42%
0%100%
Low · Change unavailable
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 2
MGASA-2026-0502RHSA-2026:74858

Timeline

  1. 01-10-2026
    PublishedVulnerability first disclosed.
  2. 01-10-2026
    Last modifiedVulnerability information updated.

Description

A memory calculation bug in mod_dav in Apache httpd 2.4.67 and earlier allows an attacker with permission to create WebDAV locks to crash server child processes. Users are recommended to upgrade to version 2.4.69, which fixes this issue

CVSS metrics

5 scores · 5 sources · 1 version

EPSS trend

Probability

0.42%

Chance of exploitation in the next 30 days

Percentile

34%

Versus all other CVEs

30-day change

Change unavailable

Change unavailable

02-10-202618-10-2026
EPSS score
0.42%

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

Alpine1 product
  • apache2< 2.4.69-r0
Apache1 product
Apache software foundation1 product
Debian1 product
  • apache2All versions (No fix recorded) | < 2.4.69-1~deb13u1 | < 2.4.69-1
Ubuntu1 product
  • apache2All versions (No fix recorded)

5 vendors · 5 products

References

7 links