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CVE-2002-0640: openbsd openssh

CVSS: 10.0v2.0HighModified
AliasesDEBIAN-CVE-2002-0640
Published 02-04-2003Last modified 08-08-2024
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Vulnerability summary

CVE-2002-0640 is a high (CVSS 10.0) vulnerability in openbsd openssh. EPSS estimates a 27.32% chance of exploitation in the next 30 days, higher than 98% of scored vulnerabilities. 2 public exploits are recorded.

Overall risk
90/100
0100
Critical · default modelHow is this calculated?
CVSS score
10.0/10
010
High · v2.0 (NVD)
EPSS score
27.32%
0%100%
High · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits2exploit-database

Timeline

  1. 02-04-2003
    PublishedVulnerability first disclosed.
  2. 08-08-2024
    Last modifiedVulnerability information updated.

Description

Buffer overflow in sshd in OpenSSH 2.3.1 through 3.3 may allow remote attackers to execute arbitrary code via a large number of responses during challenge response authentication when OpenBSD is using PAM modules with interactive keyboard authentication (PAMAuthenticationViaKbdInt).

CVSS metrics

1 score · 1 source · 1 version

EPSS trend

Probability

27.32%

Chance of exploitation in the next 30 days

Percentile

98%

Versus all other CVEs

30-day change

0.00 pp

From 27.32% on 21-09-2026

21-09-202621-10-2026
EPSS score
27.32%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

2 found
  • exploit-databaseremoteunixVerified

    OpenSSH 3.x - Challenge-Response Buffer Overflow (1)

    Maturity: weaponized

  • exploit-databaseremoteunixVerified

    OpenSSH 3.x - Challenge-Response Buffer Overflow (2)

    Maturity: weaponized

Weaknesses

CWE · root cause

No weakness data has been published for this record.

Affected systems

Debian1 product
  • openssh< 1:3.4
Openbsd1 product
  • openssh1.2.2 | 1.2.3 | 2.1 | 2.1.1 | 2.2 | 2.3 | 2.5 | 2.5.1 | 2.5.2 | 2.9 | 2.9.9 | 2.9p1 | 2.9p2 | 3.0 | 3.0.1 | 3.0.1p1 | 3.0.2 | 3.0.2p1 | 3.0p1 | 3.1 | 3.1p1 | 3.2 | 3.2.2p1 | 3.2.3p1 | 3.3 | 3.3p1

2 vendors · 2 products

References

18 links
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