How severe is CVE-2025-26794?

CVE-2025-26794 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2025-26794 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 78% (100th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-26794?

CVE-2025-26794 affects Exim. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-26794?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2025-26794 have an EU (EUVD) identifier?

Yes. CVE-2025-26794 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-4451.

When was CVE-2025-26794 published?

CVE-2025-26794 was published on 2025-02-21 and last updated on 2026-06-17.

CVE-2025-26794

CVE-2025-26794 is a high-severity vulnerability in Exim with a CVSS 3.x base score of 7.5. Its EPSS exploit-prediction score of 78% places it in the 100th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-89.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 78% (100th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-4451
Weakness: CWE-89
Affected product: Exim
Published: 2025-02-21
Last modified: 2026-06-17

Description

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.)

Frequently asked questions

What is 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.)
How severe is CVE-2025-26794?: CVE-2025-26794 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2025-26794 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 78% (100th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-26794?: CVE-2025-26794 affects Exim. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-26794?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2025-26794 have an EU (EUVD) identifier?: Yes. CVE-2025-26794 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-4451.
When was CVE-2025-26794 published?: CVE-2025-26794 was published on 2025-02-21 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:exim:exim:*:*:*:*:*:*:*:*

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Threat intelligence

Threat-intel indicators referencing this CVE:

147.50.227.79 (ipv4-addr)
185.226.160.63 (ipv4-addr)
103.230.71.22 (ipv4-addr)
198.46.237.172 (ipv4-addr)
74.50.96.173 (ipv4-addr)
178.128.28.24 (ipv4-addr)
185.126.181.39 (ipv4-addr)
70.33.250.58 (ipv4-addr)