Vulnerability Report

CVE-1999-1273

Title: CVE-1999-1273

Other

Proof Of Concept

No public PoC currently indexed for CVE-1999-1273.

CWE Category NVD-CWE-noinfo

Published Date Feb 20, 1998

Modified Date Jun 16, 2026

Exploit Status Not Found

Score 7.5 CVSS v2.0

Exploit Probability (EPSS)

1.31%

Vulnerability Summary

CVE-1999-1273: Squid Internet Object Cache 1.1.20 allows users to bypass access control lists (ACLs) by encoding the URL with hexadecimal escape sequences.

Impacted Vendors

national_science_foundation 1

squid 1

Reference Links

http://www.securityfocus.com/archive/1/8551 https://exchange.xforce.ibmcloud.com/vulnerabilities/1627 http://www.securityfocus.com/archive/1/8551 https://exchange.xforce.ibmcloud.com/vulnerabilities/1627

CVSS v2.0

Source Entity [email protected]

Severity HIGH

7.5

Access Vector

N/A

Authentication

N/A

RAW VECTOR AV:N/AC:L/Au:N/C:P/I:P/A:P

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-1999-1273 Exploits & PoCs (Proof Of Concept)

No public PoCs found in our database for this CVE.

June 16, 2026 MODIFIED

Vulnerability data updated via NVD.

April 16, 2026 MODIFIED

Vulnerability data updated via NVD.

April 03, 2025 MODIFIED

Vulnerability data updated via NVD.

Attack Vector Matrix

Access Vector N/A

Complexity N/A

Privileges N/A

Interaction NONE

CVSS Vector String


                                    AV:N/AC:L/Au:N/C:P/I:P/A:P

Affected Stack

No specific products linked.