7.5

CVE-2024-41996: edk2 Improper Certificate Validation

Deferred
AliasesSUSE-SU-2024:3500-1SUSE-SU-2024:3501-1SUSE-SU-2024:3525-1
Published 26-08-2024Last modified 15-10-2026

Vulnerability summary

CVE-2024-41996 is a high (CVSS 7.5) Improper Certificate Validation vulnerability in edk2. EPSS estimates a 1.08% chance of exploitation in the next 30 days, higher than 65.2% of scored vulnerabilities.

Priority
Prioritisesevere

Severe, CVSS 7.5 (CVE.org); no exploitation reported by the 5 checked sources; EPSS 1% (FIRST, 03-11-2026)

Source freshness unavailable

How is this decided?
CVSS score
7.5/10
010
High · v3.1 (CVE.org)
EPSS score
1.08%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 4 · Related 4
SUSE-SU-2024:3766-1SUSE-SU-2024:3871-1SUSE-SU-2025:20081-1SUSE-SU-2026:22132-1

Timeline

  1. 26-08-2024
    PublishedVulnerability first disclosed.
  2. 15-10-2026
    Last modifiedVulnerability information updated.

Description

Validating the order of the public keys in the Diffie-Hellman Key Agreement Protocol, when an approved safe prime is used, allows remote attackers (from the client side) to trigger unnecessarily expensive server-side DHE modular-exponentiation calculations. The client may cause asymmetric resource consumption. The basic attack scenario is that the client must claim that it can only communicate with DHE, and the server must be configured to allow DHE and validate the order of the public key.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

1.08%

Chance of exploitation in the next 30 days

Percentile

65%

Versus all other CVEs

30-day change

No change 0.00 pp

From 1.08% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: network-reachable, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.

Suse10 products
  • openssl-3&distro=SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS< 3.0.8-150400.4.66.1
  • openssl-3&distro=SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS< 3.0.8-150400.4.66.1
  • openssl-3&distro=SUSE Linux Enterprise Micro 5.3< 3.0.8-150400.4.66.1
  • openssl-3&distro=SUSE Linux Enterprise Micro 5.4< 3.0.8-150400.4.66.1
  • openssl-3&distro=SUSE Linux Enterprise Module for Basesystem 15 SP5< 3.0.8-150500.5.45.1
Opensuse3 products
  • openssl-3&distro=openSUSE Leap 15.5< 3.0.8-150500.5.45.1
  • openssl-3&distro=openSUSE Leap 15.6< 3.1.4-150600.5.18.1
  • openssl-3&distro=openSUSE Tumbleweed< 3.1.4-14.1
Ubuntu3 products
  • edk2All versions (No fix recorded)
  • nodejsAll versions (No fix recorded)
  • opensslAll versions (No fix recorded)

3 vendors · 16 products

References

15 links
Show all 15 references