Vulnerability

CVE-2016-7141

High· 7.5CVSS7.5EPSS1%

.rules3/5

curl/libcurl: Incorrect reuse of client certificates

libcurl built on top of NSS (Network Security Services) incorrectly reused client certificates if a certificate from file was used for one TLS connection but no certificate set for a subsequent TLS connection. While the symptoms are similar to CVE-2016-5420 (Reusing connection with wrong client cert), this vulnerability was caused by an implementation detail of the NSS backend in libcurl, which is orthogonal to the cause of CVE-2016-5420.

Threat signal

75/100

High

Severity

high

CVSS

7.5

EPSS

Active

CVSS

v3.0via NVDOpen in FIRST calculator →

7.5/ 10HIGHCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Attack VectorNetworkExploitable remotely over the internet — no local access needed.
Attack ComplexityLowNo special conditions — exploit works reliably.
Privileges RequiredNoneUnauthenticated — no credentials needed.
User InteractionNoneFully automated — no victim action needed.
ScopeUnchangedImpact contained to the vulnerable component.
Confidentiality ImpactNoneNo confidentiality impact.
Integrity ImpactHighTotal compromise of integrity — full data modification possible.
Availability ImpactNoneNo availability impact.

EPSS

Exploit prediction · 30-day horizonFIRST.org →

0.52%

probability of exploitation in next 30 days

p67

higher than 67% of all CVEs

3-day trend↑ 0pp

Low exploitation likelihood — defer if no other signals fire.

Vendor VEX

No VEX statements published for CVE-2016-7141. Vendors publish VEX (Vulnerability Exploitability eXchange) to assert per-product whether a CVE is actually exploitable in their distribution.

SSVCTrack

Total impact on non-trivial mission systems

exploitation: none
automatable: no
impact: total
mission: support

Lifecycle

2016-09-07Published
2026-04-25Last modified2 sources

References

https://curl.se/docs/CVE-2016-7141.html

No source-event history recorded yet. New revisions will appear here as ingestors re-fetch this CVE.