CVE-2023-1973: undertow Improper Input Validation
CVSS: 7.5v3.1HighDeferred
AliasesUBUNTU-CVE-2023-1973GHSA-97cq-f4jm-mv8hDEBIAN-CVE-2023-1973
Published 07-11-2024Last modified 07-11-2024
Vulnerability summary
CVE-2023-1973 is a high (CVSS 7.5) Improper Input Validation vulnerability in undertow. EPSS estimates a 1.28% chance of exploitation in the next 30 days, higher than 69.6% of scored vulnerabilities.
CVSS score
7.5/10
010
High · v3.1 (CVE.org)EPSS score
1.28%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Advisory lineage
Upstream 0 · Downstream 6Timeline
- 07-11-2024PublishedVulnerability first disclosed.
- 07-11-2024Last modifiedVulnerability information updated.
Description
A flaw was found in Undertow package. Using the FormAuthenticationMechanism, a malicious user could trigger a Denial of Service by sending crafted requests, leading the server to an OutofMemory error, exhausting the server's memory.
CVSS metrics
6 scores · 5 sources · 2 versionsHigh 8.7Preferred score · OSV · Maven (Ecosystem advisory) · calculated from vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:USourcesSingle source
High 7.5Preferred score · CVE.org (CNA)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HSourcesAll 5 agree
- OSV · UbuntuEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- OSV · MavenEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- NVDNIST7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS trend
Probability
1.28%
Chance of exploitation in the next 30 days
Percentile
70%
Versus all other CVEs
30-day change
0.00 pp
From 1.28% on 19-09-2026
19-09-202619-10-2026
EPSS score1.28%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Debian1 product
- undertow< 2.3.18-1
Io.undertow1 product
- undertow-core< 2.2.32.Final | ≥ 2.3.0.Alpha1, < 2.3.13.Final
Ubuntu1 product
- undertowAll versions (No fix recorded)
3 vendors · 3 products
