4.3

CVE-2008-3906: mono_project mono Improper Input Validation

CVSS: 4.3v2.0MediumModified
AliasesDEBIAN-CVE-2008-3906
Published 04-09-2008Last modified 07-08-2024
Open JSON

Vulnerability summary

CVE-2008-3906 is a medium (CVSS 4.3) Improper Input Validation vulnerability in mono_project mono. EPSS estimates a 7.10% chance of exploitation in the next 30 days, higher than 94.1% of scored vulnerabilities. 2 public exploits are recorded.

Overall risk
29/100
0100
Medium · default modelHow is this calculated?
CVSS score
4.3/10
010
Medium · v2.0 (NVD)
EPSS score
7.10%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits2reference, exploit-database

Timeline

  1. 04-09-2008
    PublishedVulnerability first disclosed.
  2. 07-08-2024
    Last modifiedVulnerability information updated.

Description

CRLF injection vulnerability in Sys.Web in Mono 2.0 and earlier allows remote attackers to inject arbitrary HTTP headers and conduct HTTP response splitting attacks via CRLF sequences in the query string.

CVSS metrics

1 score · 1 source · 1 version

EPSS trend

Probability

7.10%

Chance of exploitation in the next 30 days

Percentile

94%

Versus all other CVEs

30-day change

0.00 pp

From 7.10% on 20-09-2026

20-09-202620-10-2026
EPSS score
7.10%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

2 found
  • referenceUnverified

    Exploit Reference (securityfocus.com)

    Maturity: unknown

  • exploit-databaseremotelinuxVerified

    Mono 2.0 - 'System.Web' HTTP Header Injection

    Maturity: weaponized

Weaknesses

CWE · root cause

Affected systems

Debian1 product
  • mono< 1.9.1+dfsg-4
Mono1 product
  • mono1.0 | 1.0.5 | 1.1.4 | 1.1.8.3 | 1.1.13 | 1.1.13.4 | 1.1.13.6 | 1.1.13.7 | 1.1.17 | 1.1.17.1 | 1.1.18 | 1.2.5.1
Mono_project1 product
  • mono≤ 2.0 | 1.2.1 | 1.2.2 | 1.2.3 | 1.2.4 | 1.2.5 | 1.2.6 | 1.9

3 vendors · 3 products

References

12 links
Show all 12 references