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CVE Record

CVE-2015-7181: The sec_asn1d_parse_leaf function in Mozilla Network Security Services (NSS) before 3.19.2.1 and 3.20.x bef...

The sec_asn1d_parse_leaf function in Mozilla Network Security Services (NSS) before 3.19.2.1 and 3.20.x before 3.20.1, as used in Firefox before 42.0 and Firefox ESR 38.x before 38.4 and other products, improperly restricts access to an unspecified data structure, which allows remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via crafted OCTET STRING data, related to a "use-after-poison" issue.

UnknownCVSS not scoredNot KEV-listedUpdated
Glexia's TakeAutomated analysis

Security readout for executives and security teams

CVE-2015-7181 is a memory-safety flaw in Mozilla NSS, a security library used by Firefox and other products. Specially crafted OCTET STRING data could crash an application and may allow code execution. The bundle does not provide CVSS, confirmed exploitation, or a single universal patch source. Exposure is likely where vulnerable NSS versions are embedded, including Firefox before 42.0, Firefox ESR 38.x before 38.4, Linux distribution NSS packages, and vendor products referenced by advisories. Actual exposure depends on deployed NSS versions and bundled application dependencies. Treat this as a high-priority legacy exposure cleanup item, especially for systems still running 2015-era NSS, Firefox ESR, or vendor appliances. Urgency is driven by possible remote code execution, but current evidence does not show active exploitation. Mitigation focus: Update NSS to 3.19.2.1, 3.20.1, or a later vendor-supported version.; Update Firefox to 42.0 or later, and Firefox ESR to 38.4 or later.; Apply relevant distribution advisories from Debian, Ubuntu, SUSE, Gentoo, Red Hat, or Oracle..

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Potential ATT&CK relevance

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors
0Timeline events
0ADP providers
8Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
n/an/an/aListed
Weakness

CWE details

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