CVE-2018-10844

mediumpriority · track · 25OT risk · elevatedEPSS 0.036 · 89 %ileDEEURUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

3.58% (89th) EPSS

CVSS 4.3 · medium

Is it mine?

35 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · fstec_bdu · cert_bund

EPSS · scored 2026-10-27

It was found that the GnuTLS implementation of HMAC-SHA-256 was vulnerable to a Lucky thirteen style attack. Remote attackers could use this flaw to conduct distinguishing attacks and plaintext-recovery attacks via statistical analysis of timing data using crafted packets.

cvss

Technical severity, 0–10. One row per scoring source.

5.9

010

base score 0–10 · higher = more severe · hover a vector to decode

v2.04.3mediumAV:N/AC:M/Au:N/C:P/I:N/A:Nprimary · NVD / NIST USexploitability 8.6 · impact 2.9

v3.15.9mediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:Nprimary · NVD / NIST USexploitability 2.2 · impact 3.6

v3.05.9mediumCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:Nsecondary · ENISA EU

v3.05.9mediumCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:Nsecondary · secalert@redhat.com USexploitability 2.2 · impact 3.6

v3.15.9mediumAV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:Nsecondary · FSTEC (BDU) RU

v3.15.4mediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-327USCWE-327USCWE-385USCWE-385US

affected products (35)

Products and version ranges known to be affected.

Debian Linuxall versionscert_bundDEcpe:/o:debian:debian_linux:-
Dell Secure Connect Gateway <5.36.00.16all versionscert_bundDE
McAfee Web Gateway <7.8.2.6all versionscert_bundDE
McAfee Web Gateway <8.0.3all versionscert_bundDE
Open Source GnuTLSall versionscert_bundDEcpe:/a:gnu:gnutls:-
Oracle Linuxall versionscert_bundDEcpe:/o:oracle:linux:-
Red Hat Enterprise Linuxall versionscert_bundDEcpe:/o:redhat:enterprise_linux:-
SUSE Linuxall versionscert_bundDEcpe:/o:suse:suse_linux:-
Ubuntu Linuxall versionscert_bundDEcpe:/o:canonical:ubuntu_linux:-
Dell Secure Connect Gateway< 5.36.00.16cert_bundDE
McAfee Web Gateway< 7.8.2.6cert_bundDE
McAfee Web Gateway< 8.0.3cert_bundDE
[UNKNOWN] GnuTLS≤ n/aenisa_euvdEU
Canonical Ltd. Ubuntu≤ 19.04fstec_bduRU
Canonical Ltd. Ubuntu≤ 16.04 LTSfstec_bduRU
Canonical Ltd. Ubuntu≤ 18.04 LTSfstec_bduRU
Canonical Ltd. Ubuntu≤ 18.10fstec_bduRU
Free Software Foundation, Inc. GnuTLSall versionsfstec_bduRU
Novell Inc. OpenSUSE Leap≤ 42.3fstec_bduRU
Novell Inc. OpenSUSE Leap≤ 15.0fstec_bduRU

showing 20 of 35

advisories (1)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2026-3119GnuTLS: Mehrere Schwachstellen ermöglichen Umgehen von SicherheitsvorkehrungenDeutsch2018-08-23csaf · cert_bundDE
Ein entfernter, anonymer oder lokaler Angreifer kann mehrere Schwachstellen in GnuTLS ausnutzen, um Sicherheitsvorkehrungen zu umgehen.

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu cert_bund NVD CVE.org MITRE

published 2018-08-22modified 2026-06-17

references (47)

External citations — patches, advisories, analysis.

scry

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