CVE-2020-5929

lowpriority · track · 24EPSS 0.011 · 65 %ileDEEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

1.09% (65th) EPSS

CVSS 2.6 · low

Is it mine?

89 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · cert_bund · nvd

EPSS · scored 2026-10-23

In versions 13.0.0-13.0.0 HF2, 12.1.0-12.1.2 HF1, and 11.6.1-11.6.2, BIG-IP platforms with Cavium Nitrox SSL hardware acceleration cards, a Virtual Server configured with a Client SSL profile, and using Anonymous (ADH) or Ephemeral (DHE) Diffie-Hellman key exchange and Single DH use option not enabled in the options list may be vulnerable to crafted SSL/TLS Handshakes that may result with a PMS (Pre-Master Secret) that starts in a 0 byte and may lead to a recovery of plaintext messages as BIG-IP TLS/SSL ADH/DHE sends different error messages acting as an oracle. Similar error messages when PMS starts with 0 byte coupled with very precise timing measurement observation may also expose this vulnerability.

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⚠ sources disagree · low–medium · 2.6–5.9

v2.02.6lowAV:N/AC:H/Au:N/C:P/I:N/A:Nprimary · NVD / NIST USexploitability 4.9 · 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

v3.15.4mediumCVSS: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-203USprimary

affected products (89)

Products and version ranges known to be affected.

Debian Linuxall versionscert_bundDEcpe:/o:debian:debian_linux:-
Dell NetWorker <19.10all versionscert_bundDE
F5 BIG-IPall versionscert_bundDEcpe:/a:f5:big-ip:-
Gentoo Linuxall versionscert_bundDEcpe:/o:gentoo:linux:-
IBM QRadar SIEM <7.5.0 UP8all versionscert_bundDE
IBM Rational Build Forge <8.0.0.24all versionscert_bundDE
NetApp Data ONTAPall versionscert_bundDEcpe:/a:netapp:data_ontap:-
Open Source OpenSSL <1.0.2wall versionscert_bundDE
SUSE Linuxall versionscert_bundDEcpe:/o:suse:suse_linux:-
SolarWinds Platform <2025.4all versionscert_bundDE
Specification TLSall versionscert_bundDEcpe:/a:open_source:tls1:-
Ubuntu Linuxall versionscert_bundDEcpe:/o:canonical:ubuntu_linux:-
Xerox FreeFlow Print Server 7all versionscert_bundDEcpe:/a:xerox:freeflow_print_server:7
Dell Networker< 19.10cert_bundDE
IBM QRadar SIEM< 7.5.0 UP8cert_bundDE
IBM Rational Build Forge< 8.0.0.24cert_bundDE
Open Source OpenSSL< 1.0.2wcert_bundDE
SolarWinds Platform< 2025.4cert_bundDE
n/a BIG-IP≤ 13.0.0-13.0.0 HF2, 12.1.0-12.1.2 HF1, 11.6.1-11.6.2enisa_euvdEU
f5 big-ip access policy manager11.6.1 → 11.6.2nvdUScpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:*

showing 20 of 89

advisories (1)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2022-1723TLS: Mehrere Schwachstellen ermöglichen Umgehen von SicherheitsvorkehrungenDeutsch2020-09-09csaf · cert_bundDE
Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in TLS 1.2 ausnutzen, um Sicherheitsvorkehrungen zu umgehen.

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd cert_bund nvd NVD CVE.org MITRE

published 2020-09-25modified 2026-06-17

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+880 more

references (8)

External citations — patches, advisories, analysis.

scry

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