7.5

CVE-2015-3277: mod_nss_project mod_nss

Modified
AliasesUBUNTU-CVE-2015-3277
Published 09-08-2017Last modified 06-08-2024

Vulnerability summary

CVE-2015-3277 is a high (CVSS 7.5) vulnerability in mod_nss_project mod_nss. EPSS estimates a 2.53% chance of exploitation in the next 30 days, higher than 84.9% of scored vulnerabilities.

Priority
Prioritisesevere

Severe, CVSS 7.5 (NVD); no exploitation reported by the 5 checked sources; EPSS 3% (FIRST, 03-11-2026)

Source freshness unavailable

How is this decided?
CVSS score
7.5/10
010
High · v3.0 (NVD)
EPSS score
2.53%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Timeline

  1. 09-08-2017
    PublishedVulnerability first disclosed.
  2. 06-08-2024
    Last modifiedVulnerability information updated.

Description

The mod_nss module before 1.0.11 in Fedora allows remote attackers to obtain cipher lists due to incorrect parsing of multi-keyword cipherstring.

CVSS metrics

3 scores · 2 sources · 2 versions

EPSS trend

Probability

2.53%

Chance of exploitation in the next 30 days

Percentile

85%

Versus all other CVEs

30-day change

No change 0.00 pp

From 2.53% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: network-reachable, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.

Mod_nss_project1 product
Ubuntu1 product
  • libapache2-mod-nssAll versions (No fix recorded)

2 vendors · 2 products

References

5 links