7.5

CVE-2023-50782: Python-cryptography: bleichenbacher timing oracle attack against rsa decryption - incomplete fix for cve-2020-25659

Modified
AliasesSUSE-SU-2024:3757-1SUSE-SU-2024:3765-1SUSE-SU-2024:3872-1
Published 05-02-2024Last modified 24-03-2026

Vulnerability summary

CVE-2023-50782 is a high (CVSS 7.5) Observable Discrepancy vulnerability in couchbase couchbase_server. EPSS estimates a 1.12% chance of exploitation in the next 30 days, higher than 66.1% 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
1.12%
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 6 · Related 11
MGASA-2025-0069OPENSUSE-SU-2024:14416-1SUSE-SU-2024:3766-1SUSE-SU-2024:3871-1SUSE-SU-2025:20081-1USN-6673-1

Timeline

  1. 05-02-2024
    PublishedVulnerability first disclosed.
  2. 24-03-2026
    Last modifiedVulnerability information updated.

Description

A flaw was found in the python-cryptography package. This issue may allow a remote attacker to decrypt captured messages in TLS servers that use RSA key exchanges, which may lead to exposure of confidential or sensitive data.

CVSS metrics

8 scores · 7 sources · 2 versions

EPSS trend

Probability

1.12%

Chance of exploitation in the next 30 days

Percentile

66%

Versus all other CVEs

30-day change

No change 0.00 pp

From 1.12% 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.

Suse25 products
  • openssl-1_1&distro=SUSE Enterprise Storage 7.1< 1.1.1d-150200.11.97.1
  • openssl-1_1&distro=SUSE Linux Enterprise High Performance Computing 15 SP2-LTSS< 1.1.1d-150200.11.97.1
  • openssl-1_1&distro=SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS< 1.1.1d-150200.11.97.1
  • openssl-1_1&distro=SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS< 1.1.1l-150400.7.75.1
  • openssl-1_1&distro=SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS< 1.1.1l-150400.7.75.1
Chainguard18 products
  • airflow< 2.10.5-r44 | All versions (No fix recorded)
  • airflow-bitnami-compatAll versions (No fix recorded)
  • az< 2.57.0-r0
  • ggshield< 1.25.0-r0
  • kubeflow-pipelines< 2.0.5-r3
Wolfi18 products
  • airflow< 2.10.5-r44 | All versions (No fix recorded)
  • airflow-bitnami-compatAll versions (No fix recorded)
  • az< 2.57.0-r0
  • ggshield< 1.25.0-r0
  • kubeflow-pipelines< 2.0.5-r3
Opensuse4 products
  • openssl-1_1&distro=openSUSE Leap 15.5< 1.1.1l-150500.17.37.1
  • openssl-1_1&distro=openSUSE Leap 15.6< 1.1.1w-150600.5.9.1
  • openssl-1_1&distro=openSUSE Leap Micro 5.5< 1.1.1l-150500.17.37.1
  • openssl-3&distro=openSUSE Leap 15.6< 3.1.4-150600.5.21.1
Redhat3 products
Couchbase1 product
Cryptography.io1 product
Debian1 product
  • python-cryptographyAll versions (No fix recorded) | < 42.0.5-1
PyPI1 product
  • cryptography< 42.0.0
Ubuntu1 product
  • python-cryptography< 2.1.4-1ubuntu1.4+esm1 | < 2.8-3ubuntu0.3 | < 3.4.8-1ubuntu2.2 | < 1.2.3-1ubuntu0.3+esm1

10 vendors · 73 products

References

44 links
Show all 44 references