CVE-2025-54090 | Apache HTTP Server: 'RewriteCond expr' always evaluates to true in 2.4.64

A bug in Apache HTTP Server 2.4.64 results in all "RewriteCond expr ..." tests evaluating as "true". Users are recommended to upgrade to version 2.4.65, which fixes the issue.

Published: 2025-07-23 Last update: 2025-11-04 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2025-54090 is rated Moderate Risk (52.5/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 0.92%). Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2025-54090

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-05-19 0.30% 0.92% +0.63%
2 2026-02-21 0.24% 0.30% +0.06%
3 2026-02-18 — 0.24% —

Full EPSS history (9 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2025-54090

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
6.3 3.1 MEDIUM
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:L)
Some sensitive info could get out, but not a total data dump.
Integrity (I:L)
Attackers could change some data, but it’s limited—not everything goes.
Availability (A:L)
Might cause slowdowns, glitches, or partial disruption—not a full brick.
 2.8 3.4 134c704f-9b21-4f2e-91b3-4a467353bcc0

Weakness enumeration for CVE-2025-54090

OS Trackers for CVE-2025-54090

vendor priority summary link
alpine — CVE-2025-54090: 1 source package rows (apache2); 5 state rows across 5 repos (3.19-main, 3.20-main, 3.21-main, 3.22-main, edge-main); fixed 5, open 0. https://security.alpinelinux.org/vuln/CVE-2025-54090
debian unimportant CVE-2025-54090 unimportant priority: Debian including 1 source packages (apache2), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2025-54090
redhat medium — https://access.redhat.com/security/cve/CVE-2025-54090
suse medium CVE-2025-54090 severity moderate: SUSE including 8 source package names (apache2, apache2-2.4.65-1.1, …), 148 product×package rows across 35 product lines (SLES-LTSS-TERADATA 15 SP2, SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS, … (35 product lines)): Known Not Affected 147, Fixed 1. https://www.suse.com/security/cve/CVE-2025-54090/
ubuntu medium CVE-2025-54090 medium priority: Ubuntu including 1 source packages (apache2), 8 status rows across 8 suites (bionic, focal, jammy, noble, plucky, trusty, upstream, xenial): not-affected 7, released 1. https://ubuntu.com/security/CVE-2025-54090

Affected software / configurations for CVE-2025-54090

Vendor Product Version Raw CPE
apache http_server 2.4.64 cpe:2.3:a:apache:http_server:2.4.64:*:*:*:*:*:*:*

References for CVE-2025-54090

cvelogic Threat Intelligence