CVE-2025-26794

Exim 4.98 before 4.98.1, when SQLite hints and ETRN serialization are used, allows remote SQL injection. (Resolving SQL injection requires an update to 4.99.1 in certain non-default rate-limit configurations.)

Published: 2025-02-21 Last update: 2025-12-18 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2025-26794 is rated Moderate Risk (64.4/100): CVSS High severity, with high exploitation likelihood (EPSS 78.00%, 99th percentile). EPSS ranks this CVE among the most likely to be exploited in the near term. High exploitation likelihood—assess exposure and prioritize 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-2025-26794

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 2026-06-03 78.30% 78.00% -0.30%
2 2026-05-31 76.55% 78.30% +1.75%
3 2026-05-22 — 76.55% —

Full EPSS history (40 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2025-26794

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.5 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H 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:N)
No account or special rights needed—anonymous or random user is enough.
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:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 3.9 3.6 [email protected]
9.8 3.1 CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H 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:N)
No account or special rights needed—anonymous or random user is enough.
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:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 3.9 5.9 [email protected]

Weakness enumeration for CVE-2025-26794

OS Trackers for CVE-2025-26794

vendor priority summary link
alpine — CVE-2025-26794: 1 source package rows (exim); 2 state rows across 2 repos (3.22-community, edge-community); fixed 0, open 2. https://security.alpinelinux.org/vuln/CVE-2025-26794
debian unimportant CVE-2025-26794 unimportant priority: Debian including 1 source packages (exim4), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2025-26794
redhat high — https://access.redhat.com/security/cve/CVE-2025-26794
ubuntu medium CVE-2025-26794 medium priority: Ubuntu including 1 source packages (exim4), 8 status rows across 8 suites (bionic, focal, jammy, noble, oracular, trusty, upstream, xenial): not-affected 7, released 1. https://ubuntu.com/security/CVE-2025-26794

Affected software / configurations for CVE-2025-26794

Vendor Product Version Raw CPE
exim exim >= 4.98, < 4.98.1 cpe:2.3:a:exim:exim:*:*:*:*:*:*:*:*

References for CVE-2025-26794

URL Tags
https://bugzilla.suse.com/show_bug.cgi?id=1237424 Issue Tracking Third Party Advisory
https://code.exim.org/exim/exim/commit/bfe32b5c6ea033736a26da8421513206db9fe305 Patch
https://exim.org Product
https://exim.org/static/doc/security/EXIM-Security-2025-12-09.1/report.txt
https://github.com/Exim/exim/wiki/EximSecurity Vendor Advisory
https://github.com/NixOS/nixpkgs/pull/383926 Release Notes
https://github.com/openbsd/ports/commit/584d2c49addce9ca0ae67882cc16969104d7f82d Patch
https://www.exim.org/static/doc/security/CVE-2025-26794.txt Vendor Advisory
http://www.openwall.com/lists/oss-security/2025/02/19/1 Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2025/02/21/4 Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2025/02/21/5 Mailing List Third Party Advisory
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