CVE-2025-65082: apache software foundation apache http server
Vulnerability summary
CVE-2025-65082 is a medium (CVSS 6.5) vulnerability in apache software foundation apache http server. EPSS estimates a 0.81% chance of exploitation in the next 30 days, higher than 56% of scored vulnerabilities.
Advisory lineage
Upstream 0 · Downstream 17 · Related 10Timeline
- 05-12-2025PublishedVulnerability first disclosed.
- 05-12-2025Last modifiedVulnerability information updated.
Description
Improper Neutralization of Escape, Meta, or Control Sequences vulnerability in Apache HTTP Server through environment variables set via the Apache configuration unexpectedly superseding variables calculated by the server for CGI programs. This issue affects Apache HTTP Server from 2.4.0 through 2.4.65. Users are recommended to upgrade to version 2.4.66 which fixes the issue.
CVSS metrics
5 scores · 5 sources · 1 version- OSV · AlpineEcosystem advisory · calculated6.5MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
- OSV · UbuntuEcosystem advisory · calculated6.5MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
- OSV · DebianEcosystem advisory · calculated6.5MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
- NVDNIST6.5MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
EPSS trend
Probability
0.81%
Chance of exploitation in the next 30 days
Percentile
56%
Versus all other CVEs
30-day change
0.00 pp
From 0.81% on 18-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Alpine1 product
- apache2< 2.4.66-r0
Apache1 product
- http_server≥ 2.4.0, < 2.4.66
Apache software foundation1 product
- apache http server≥ 2.4.0, ≤ 2.4.65
Debian1 product
- apache2< 2.4.66-1~deb12u1 | < 2.4.66-1~deb13u1 | < 2.4.66-1
Ubuntu1 product
- apache2< 2.4.7-1ubuntu4.22+esm12 | < 2.4.18-2ubuntu3.17+esm17 | < 2.4.29-1ubuntu4.27+esm7 | < 2.4.41-4ubuntu3.23+esm3 | < 2.4.52-1ubuntu4.18 | < 2.4.58-1ubuntu8.10 | < 2.4.64-1ubuntu3.2 | < 2.4.66-2ubuntu1
5 vendors · 5 products
References
10 links- httpd.apache.org/security/vulnerabilities_24.htmlVendor Advisory