How severe is CVE-2018-11780?

CVE-2018-11780 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2018-11780 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 11% (95th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-11780?

CVE-2018-11780 primarily affects Apache Spamassassin. In total, 7 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2018-11780?

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

When was CVE-2018-11780 published?

CVE-2018-11780 was published on 2018-09-17 and last updated on 2026-06-17.

CVE-2018-11780

CVE-2018-11780 is a critical-severity vulnerability in Apache Spamassassin with a CVSS 3.x base score of 9.8. Its EPSS exploit-prediction score of 11% places it in the 95th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-94.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 11% (95th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-94
Affected product: Apache Spamassassin
Published: 2018-09-17
Last modified: 2026-06-17

Description

A potential Remote Code Execution bug exists with the PDFInfo plugin in Apache SpamAssassin before 3.4.2.

Frequently asked questions

What is CVE-2018-11780?: A potential Remote Code Execution bug exists with the PDFInfo plugin in Apache SpamAssassin before 3.4.2.
How severe is CVE-2018-11780?: CVE-2018-11780 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2018-11780 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 11% (95th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-11780?: CVE-2018-11780 primarily affects Apache Spamassassin. In total, 7 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2018-11780?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2018-11780 published?: CVE-2018-11780 was published on 2018-09-17 and last updated on 2026-06-17.

References

Affected products (7)

cpe:2.3:a:apache:spamassassin:*:*:*:*:*:*:*:*
cpe:2.3:a:pdfinfo_project:pdfinfo:-:*:*:*:*:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:esm:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*

More vulnerabilities in Apache Spamassassin

CVE-2020-1946 — Critical (CVSS 9.8): In Apache SpamAssassin before 3.4.5, malicious rule configuration (.cf) files can be configured to run system commands…
CVE-2020-1931 — High (CVSS 8.1): A command execution issue was found in Apache SpamAssassin prior to 3.4.3. Carefully crafted nefarious Configuration…
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CVE-2018-11781 — High (CVSS 7.8): Apache SpamAssassin 3.4.2 fixes a local user code injection in the meta rule syntax.
CVE-2016-1238 — High (CVSS 7.8): (1) cpan/Archive-Tar/bin/ptar, (2) cpan/Archive-Tar/bin/ptardiff, (3) cpan/Archive-Tar/bin/ptargrep, (4)…
CVE-2019-12420 — High (CVSS 7.5): In Apache SpamAssassin before 3.4.3, a message can be crafted in a way to use excessive resources. Upgrading to SA…

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