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CVE-2015-8804

25
FAUCET Score

CVE-2015-8804 describes a critical vulnerability in Nettle before version 3.2, specifically within the x86_64/ecc-384-modp.asm component, which fails to correctly handle carry propagation in its P-384 NIST elliptic curve implementation. This flaw can lead to incorrect cryptographic output and affects products from Canonical, Nettle Project, and OpenSUSE. With a CVSS v3.0 score of 9.8 (CRITICAL), this vulnerability is remotely exploitable with low attack complexity, potentially leading to complete compromise of confidentiality, integrity, and availability. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 3.1.1CPE matchmatch criteria
cpe:2.3:a:nettle_project:nettle:*:*:*:*:*:*:*:*
14.04CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*
15.10CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:15.10:*:*:*:*:*:*:*
42.1CPE matchmatch criteria
cpe:2.3:o:opensuse:leap:42.1:*:*:*:*:*:*:*
13.1CPE matchmatch criteria
cpe:2.3:o:opensuse:opensuse:13.1:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

9.8CRITICAL

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
3.95%
Probability of exploitation in next 30 days
EPSS Percentile
89.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0395 is in the 82nd percentile among its peer group of 36,833 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: nettle-0:2.7.1-8.el7
View patch

Vendor Advisories (1)

redhatCVE-2015-8804Moderate

nettle: miscalculations on secp384 curve

Feb 2, 2016

References

lists.opensuse.org / opensuse-updates/2016-02/msg00091.html
lists.opensuse.org / opensuse-updates/2016-02/msg00093.html
lists.opensuse.org / opensuse-updates/2016-02/msg00100.html
rhn.redhat.com / errata/RHSA-2016-2582.html
blog.fuzzing-project.org / 38-Miscomputations-of-elliptic-curve-scalar-multiplications-in-Nettle.html
git.lysator.liu.se / nettle/nettle/commit/fa269b6ad06dd13c901dbd84a12e52b918a09cd7
Patch
lists.gnu.org / archive/html/info-gnu/2016-01/msg00006.html
lists.lysator.liu.se / pipermail/nettle-bugs/2015/003024.html
Vendor Advisory
openwall.com / lists/oss-security/2016/02/02/2
openwall.com / lists/oss-security/2016/02/03/1
ubuntu.com / usn/USN-2897-1