How severe is CVE-2011-3374?

CVE-2011-3374 has a CVSS 3.x base score of 3.7, rated low severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.

Is CVE-2011-3374 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (64th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2011-3374?

CVE-2011-3374 primarily affects Debian Advanced Package Tool. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2011-3374?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2011-3374 published?

CVE-2011-3374 was published on 2019-11-26 and last updated on 2026-06-16.

CVE-2011-3374

CVE-2011-3374 is a low-severity vulnerability in Debian Advanced Package Tool with a CVSS 3.x base score of 3.7. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-347.

Key facts

Severity: Low (CVSS 3.x base score 3.7)
CVSS v2: 4.3
EPSS exploit prediction: 1% (64th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-347
Affected product: Debian Advanced Package Tool
Published: 2019-11-26
Last modified: 2026-06-16

Description

It was found that apt-key in apt, all versions, do not correctly validate gpg keys with the master keyring, leading to a potential man-in-the-middle attack.

Frequently asked questions

What is CVE-2011-3374?: It was found that apt-key in apt, all versions, do not correctly validate gpg keys with the master keyring, leading to a potential man-in-the-middle attack.
How severe is CVE-2011-3374?: CVE-2011-3374 has a CVSS 3.x base score of 3.7, rated low severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.
Is CVE-2011-3374 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (64th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2011-3374?: CVE-2011-3374 primarily affects Debian Advanced Package Tool. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2011-3374?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2011-3374 published?: CVE-2011-3374 was published on 2019-11-26 and last updated on 2026-06-16.

References

Affected products (4)

cpe:2.3:a:debian:advanced_package_tool:*:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*

More vulnerabilities in Debian Advanced Package Tool

CVE-2009-1358 — Critical (CVSS 10.0): apt-get in apt before 0.7.21 does not check for the correct error code from gpgv, which causes apt to treat a…
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CVE-2014-0490 — High (CVSS 7.5): The apt-get download command in APT before 1.0.9 does not properly validate signatures for packages, which allows…
CVE-2014-0489 — High (CVSS 7.5): APT before 1.0.9, when the Acquire::GzipIndexes option is enabled, does not validate checksums, which allows remote…
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