7.5

CVE-2023-40518: litespeedtech openlitespeed

CVSS: 7.5v3.1HighModified
Published 14-08-2023Last modified 09-10-2024
Open JSON

Vulnerability summary

CVE-2023-40518 is a high (CVSS 7.5) vulnerability in litespeedtech openlitespeed. EPSS estimates a 0.65% chance of exploitation in the next 30 days, higher than 50.2% of scored vulnerabilities.

Overall risk
30/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.5/10
010
High · v3.1 (NVD)
EPSS score
0.65%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 14-08-2023
    PublishedVulnerability first disclosed.
  2. 09-10-2024
    Last modifiedVulnerability information updated.

Description

LiteSpeed OpenLiteSpeed before 1.7.18 does not strictly validate HTTP request headers.

CVSS metrics

1 score · 1 source · 1 version

EPSS trend

Probability

0.65%

Chance of exploitation in the next 30 days

Percentile

50%

Versus all other CVEs

30-day change

0.00 pp

From 0.65% on 18-09-2026

18-09-202618-10-2026
EPSS score
0.65%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

No weakness data has been published for this record.

Affected systems

Litespeedtech1 product

1 vendor · 1 product

References

2 links