How severe is CVE-2016-1231?

CVE-2016-1231 has a CVSS 3.x base score of 5.9, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2016-1231 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (85th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2016-1231?

CVE-2016-1231 primarily affects Debian Debian Linux. In total, 13 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2016-1231?

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

When was CVE-2016-1231 published?

CVE-2016-1231 was published on 2016-01-12 and last updated on 2026-06-17.

CVE-2016-1231

CVE-2016-1231 is a medium-severity vulnerability in Debian Debian Linux with a CVSS 3.x base score of 5.9. 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-22.

Key facts

Severity: Medium (CVSS 3.x base score 5.9)
CVSS v2: 4.3
EPSS exploit prediction: 3% (85th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-22
Affected product: Debian Debian Linux
Published: 2016-01-12
Last modified: 2026-06-17

Description

Directory traversal vulnerability in the HTTP file-serving module (mod_http_files) in Prosody 0.9.x before 0.9.9 allows remote attackers to read arbitrary files via a .. (dot dot) in an unspecified path.

Frequently asked questions

What is CVE-2016-1231?: Directory traversal vulnerability in the HTTP file-serving module (mod_http_files) in Prosody 0.9.x before 0.9.9 allows remote attackers to read arbitrary files via a .. (dot dot) in an unspecified path.
How severe is CVE-2016-1231?: CVE-2016-1231 has a CVSS 3.x base score of 5.9, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2016-1231 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (85th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2016-1231?: CVE-2016-1231 primarily affects Debian Debian Linux. In total, 13 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2016-1231?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2016-1231 published?: CVE-2016-1231 was published on 2016-01-12 and last updated on 2026-06-17.

References

Affected products (13)

cpe:2.3:o:fedoraproject:fedora:22:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:23:*:*:*:*:*:*:*
cpe:2.3:a:prosody:prosody:0.9.0:*:*:*:*:*:*:*
cpe:2.3:a:prosody:prosody:0.9.1:*:*:*:*:*:*:*
cpe:2.3:a:prosody:prosody:0.9.2:*:*:*:*:*:*:*
cpe:2.3:a:prosody:prosody:0.9.3:*:*:*:*:*:*:*
cpe:2.3:a:prosody:prosody:0.9.4:*:*:*:*:*:*:*
cpe:2.3:a:prosody:prosody:0.9.5:*:*:*:*:*:*:*
cpe:2.3:a:prosody:prosody:0.9.6:*:*:*:*:*:*:*
cpe:2.3:a:prosody:prosody:0.9.7:*:*:*:*:*:*:*
cpe:2.3:a:prosody:prosody:0.9.8:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*

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