7.5

CVE-2023-28709: Apache Tomcat: Fix for CVE-2023-24998 is incomplete

Modified
AliasesMGASA-2023-0191SUSE-SU-2023:2318-1SUSE-SU-2023:2319-1
Published 22-05-2023Last modified 13-02-2025

Vulnerability summary

CVE-2023-28709 is a high (CVSS 7.5) Off-by-one Error vulnerability in apache software foundation apache tomcat. EPSS estimates a 48.03% chance of exploitation in the next 30 days, higher than 98.8% of scored vulnerabilities.

Priority
Prioritisesevere

Severe, CVSS 7.5 (NVD); no exploitation reported by the 5 checked sources; EPSS 48% (FIRST, 03-11-2026)

Source freshness unavailable

How is this decided?
CVSS score
7.5/10
010
High · v3.1 (NVD)
EPSS score
48.03%
0%100%
High · 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 7 · Related 4
DSA-5521-1OPENSUSE-SU-2024:13441-1RHSA-2023:4909RHSA-2023:6570RHSA-2023:7065SUSE-SU-2023:2505-1

Timeline

  1. 22-05-2023
    PublishedVulnerability first disclosed.
  2. 13-02-2025
    Last modifiedVulnerability information updated.

Description

The fix for CVE-2023-24998 was incomplete for Apache Tomcat 11.0.0-M2 to 11.0.0-M4, 10.1.5 to 10.1.7, 9.0.71 to 9.0.73 and 8.5.85 to 8.5.87. If non-default HTTP connector settings were used such that the maxParameterCount could be reached using query string parameters and a request was submitted that supplied exactly maxParameterCount parameters in the query string, the limit for uploaded request parts could be bypassed with the potential for a denial of service to occur.

CVSS metrics

5 scores · 5 sources · 1 version

EPSS trend

Probability

48.03%

Chance of exploitation in the next 30 days

Percentile

99%

Versus all other CVEs

30-day change

No change 0.00 pp

From 48.03% 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.

Suse11 products
  • tomcat&distro=SUSE Linux Enterprise High Performance Computing 15 SP1-LTSS< 9.0.36-150100.4.93.1
  • tomcat&distro=SUSE Linux Enterprise Server 12 SP2-BCL< 8.0.53-29.66.1
  • tomcat&distro=SUSE Linux Enterprise Server 12 SP4-ESPOS< 9.0.36-3.105.1
  • tomcat&distro=SUSE Linux Enterprise Server 12 SP4-LTSS< 9.0.36-3.105.1
  • tomcat&distro=SUSE Linux Enterprise Server 12 SP5< 9.0.36-3.105.1
Debian2 products
Ubuntu2 products
  • tomcat10All versions (No fix recorded)
  • tomcat11All versions (No fix recorded)
Apache1 product
  • tomcat≥ 8.5.85, ≤ 8.5.87 | ≥ 9.0.71, ≤ 9.0.73 | ≥ 10.1.5, ≤ 10.1.7 | 11.0.0:milestone2 | 11.0.0:milestone3 | 11.0.0:milestone4
Apache software foundation1 product
  • apache tomcat≥ 11.0.0-M2, ≤ 11.0.0-M4 | ≥ 10.1.5, ≤ 10.1.7 | ≥ 9.0.71, ≤ 9.0.73 | ≥ 8.5.85, ≤ 8.5.87
Chainguard1 product
  • tomcat-8.5.87All versions (No fix recorded)
Mageia1 product
  • tomcat< 9.0.74-1.mga8
Netapp1 product
Opensuse1 product
  • tomcat&distro=openSUSE Tumbleweed< 9.0.75-1.1
Org.apache.tomcat1 product
  • tomcat-coyote≥ 8.5.85, < 8.5.88
Org.apache.tomcat.embed1 product
  • tomcat-embed-core≥ 11.0.0-M2, < 11.0.0-M5 | ≥ 10.1.5, < 10.1.8 | ≥ 9.0.71, < 9.0.74

11 vendors · 23 products

References

27 links
Show all 27 references