5.3

CVE-2023-27539: debian debian_linux

Analyzed
AliasesMGASA-2024-0042SUSE-SU-2023:1685-1SUSE-SU-2023:1869-1
Published 09-01-2025Last modified 09-01-2025

Vulnerability summary

CVE-2023-27539 is a medium (CVSS 5.3) vulnerability in debian debian_linux. EPSS estimates a 1.06% chance of exploitation in the next 30 days, higher than 64.5% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 5.3, network access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
5.3/10
010
Medium · v3.1 (CVE.org)
EPSS score
1.06%
0%100%
Low · -0.02 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 16 · Related 9
DLA-3392-1DSA-5530-1OPENSUSE-SU-2024:13726-1OPENSUSE-SU-2024:13727-1OPENSUSE-SU-2025:14811-1OPENSUSE-SU-2025:14875-1

Timeline

  1. 09-01-2025
    PublishedVulnerability first disclosed.
  2. 09-01-2025
    Last modifiedVulnerability information updated.

Description

There is a denial of service vulnerability in the header parsing component of Rack.

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

1.06%

Chance of exploitation in the next 30 days

Percentile

65%

Versus all other CVEs

30-day change

Decrease -0.02 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

No weakness data has been published for this record.

Affected systems

Version check

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

Suse6 products
  • rubygem-rack&distro=SUSE Linux Enterprise High Availability Extension 15 SP1< 2.0.8-150000.3.18.1
  • rubygem-rack&distro=SUSE Linux Enterprise High Availability Extension 15 SP2< 2.0.8-150000.3.18.1
  • rubygem-rack&distro=SUSE Linux Enterprise High Availability Extension 15 SP3< 2.0.8-150000.3.18.1
  • rubygem-rack&distro=SUSE Linux Enterprise High Availability Extension 15 SP4< 2.0.8-150000.3.18.1
  • rubygem-rack&distro=SUSE OpenStack Cloud Crowbar 8< 1.6.13-3.19.1
Opensuse3 products
  • rubygem-rack-2.2&distro=openSUSE Tumbleweed< 2.2.6.4-1.1
  • rubygem-rack&distro=openSUSE Leap 15.4< 2.0.8-150000.3.18.1
  • rubygem-rack&distro=openSUSE Tumbleweed< 3.0.7-1.1
Debian2 products
Mageia1 product
  • ruby-rack< 2.2.8-1.mga9
Rack1 product
  • rack≥ 2.0.0, < 2.2.6.4 | ≥ 3.0.0, < 3.0.6.1
Rails1 product
  • rack≥ 2.2.6.4, < 2.2.6.4 | ≥ 3.0.6.1, < 3.0.6.1
RubyGems1 product
  • rack≥ 2.0.0, < 2.2.6.4 | ≥ 3.0.0, < 3.0.6.1
Ubuntu1 product
  • ruby-rack< 1.5.2-3+deb8u3ubuntu1~esm7 | < 1.6.4-3ubuntu0.2+esm5 | < 1.6.4-4ubuntu0.2+esm5 | < 2.0.7-2ubuntu0.1+esm4 | < 2.1.4-5ubuntu1.1 | < 2.1.4-5ubuntu1+esm4

8 vendors · 16 products

References

25 links
Show all 25 references