7.5

CVE-2002-1336: tightvnc

CVSS: 7.5v2.0HighModified
AliasesDEBIAN-CVE-2002-1336
Published 01-09-2004Last modified 08-08-2024
Open JSON

Vulnerability summary

CVE-2002-1336 is a high (CVSS 7.5) vulnerability in tightvnc. EPSS estimates a 2.40% chance of exploitation in the next 30 days, higher than 83.7% of scored vulnerabilities.

Overall risk
30/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.5/10
010
High · v2.0 (NVD)
EPSS score
2.40%
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. 01-09-2004
    PublishedVulnerability first disclosed.
  2. 08-08-2024
    Last modifiedVulnerability information updated.

Description

TightVNC before 1.2.6 generates the same challenge string for multiple connections, which allows remote attackers to bypass VNC authentication by sniffing the challenge and response of other users.

CVSS metrics

1 score · 1 source · 1 version

EPSS trend

Probability

2.40%

Chance of exploitation in the next 30 days

Percentile

84%

Versus all other CVEs

30-day change

0.00 pp

From 2.40% on 18-09-2026

18-09-202618-10-2026
EPSS score
2.40%

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

Debian1 product
  • tightvnc< 1.2.6-1
Tightvnc1 product
  • tightvnc1.2.0 | 1.2.1 | 1.2.3 | 1.2.4 | 1.2.5

2 vendors · 2 products

References

10 links