How severe is CVE-2015-3277?

CVE-2015-3277 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 high, integrity none, and availability none.

Is CVE-2015-3277 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (83rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2015-3277?

CVE-2015-3277 affects Mod Nss Project Mod Nss. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2015-3277?

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.

When was CVE-2015-3277 published?

CVE-2015-3277 was published on 2017-08-09 and last updated on 2026-06-17.

CVE-2015-3277

CVE-2015-3277 is a high-severity vulnerability in Mod Nss Project Mod Nss with a CVSS 3.x base score of 7.5. 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-200.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 3% (83rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-200
Affected product: Mod Nss Project Mod Nss
Published: 2017-08-09
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2015-3277?: 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.
How severe is CVE-2015-3277?: CVE-2015-3277 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 high, integrity none, and availability none.
Is CVE-2015-3277 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (83rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2015-3277?: CVE-2015-3277 affects Mod Nss Project Mod Nss. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2015-3277?: 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.
When was CVE-2015-3277 published?: CVE-2015-3277 was published on 2017-08-09 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:mod_nss_project:mod_nss:*:*:*:*:*:*:*:*

More vulnerabilities in Mod Nss Project Mod Nss

CVE-2011-4973 — Critical (CVSS 9.8): Authentication bypass vulnerability in mod_nss 1.0.8 allows remote attackers to assume the identity of a valid user by…
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