7.5

CVE-1999-1357: netscape communicator

CVSS: 7.5v2.0HighModified
Published 12-09-2001Last modified 01-08-2024
Open JSON

Vulnerability summary

CVE-1999-1357 is a high (CVSS 7.5) vulnerability in netscape communicator. EPSS estimates a 2.04% chance of exploitation in the next 30 days, higher than 80.7% 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
2.04%
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. 12-09-2001
    PublishedVulnerability first disclosed.
  2. 01-08-2024
    Last modifiedVulnerability information updated.

Description

Netscape Communicator 4.04 through 4.7 (and possibly other versions) in various UNIX operating systems converts the 0x8b character to a "<" sign, and the 0x9b character to a ">" sign, which could allow remote attackers to attack other clients via cross-site scripting (CSS) in CGI programs that do not filter these characters.

CVSS metrics

1 score · 1 source · 1 version

EPSS trend

Probability

2.04%

Chance of exploitation in the next 30 days

Percentile

81%

Versus all other CVEs

30-day change

0.00 pp

From 2.04% on 19-09-2026

19-09-202619-10-2026
EPSS score
2.04%

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

Netscape1 product

1 vendor · 1 product

References

1 links