CVE-2015-8803

Name: CVE-2015-8803
Creator: NVD / NIST
Published: 2016-02-23T19:59:01.213+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 4.13%

Last modified Jun 17, 2026

CVE-2015-8803 is a vulnerability of currently unknown severity. The ecc_256_modp function in ecc-256.c in Nettle before 3.2 does not properly handle carry propagation and produces incorrect output in its implementation of the P-256 NIST elliptic curve, which allows attackers to have unspecified impact via unknown vectors, a different vulnerability than CVE-2015-8805.. EPSS estimates a 4.13% chance of exploitation in the next 30 days.

Description

The ecc_256_modp function in ecc-256.c in Nettle before 3.2 does not properly handle carry propagation and produces incorrect output in its implementation of the P-256 NIST elliptic curve, which allows attackers to have unspecified impact via unknown vectors, a different vulnerability than CVE-2015-8805.

Metrics

EPSS Probability

4.13%

89.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Nettle Project	Nettle	<= 3.1.1
Canonical	Ubuntu Linux	14.04
Canonical	Ubuntu Linux	15.10
Opensuse	Leap	42.1
Opensuse	Opensuse	13.1
Opensuse	Opensuse	13.2

References

Timeline

Published: Feb 23, 2016
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2015-8803?

How severe is CVE-2015-8803?

Severity scoring for CVE-2015-8803 is pending analysis. The EPSS model estimates a 4.13% probability of exploitation in the next 30 days.

How do I fix CVE-2015-8803?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2015-8803?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST