VulnerabilityModified

CVE-2000-0613

Cisco Secure PIX Firewall does not properly identify forged TCP Reset (RST) packets, which allows remote attackers to force the firewall to close legitimate connections.

EXPLOIT ✓MEDIUM 5.0EPSS 9.18%

Does this matter?

A public exploit is published in Exploit-DB (verified), so the technical barrier is gone even though the severity is medium and EPSS is 9.2%. Treat it as high on anything reachable from the internet.

Description

Cisco Secure PIX Firewall does not properly identify forged TCP Reset (RST) packets, which allows remote attackers to force the firewall to close legitimate connections.

CVSS 2.0: 5.0 MEDIUMAV:N/AC:L/Au:N/C:N/I:N/A:P
EPSS: 9.18% probability · 95th percentile
Public exploits: 1 in Exploit-DB · verified · first 10 July 2000
CISA KEV: Not listed
Affected: cisco/pix firewall
Source: cve@mitre.org

EPSS trend

EPSS 9.2% since 26 October 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

Public exploits (1)

Entries in Exploit-DB that cite this CVE. Links go to the Exploit-DB page and to the file in the public repository; nothing is hosted here. A verified tick means the Exploit-DB team confirmed the exploit works against the stated version.

EDB-ID	Title	Type	Published	Verified
EDB-20067 source ↗	PIX Firewall 2.7/3.x/4.x/5 - Forged TCP RSThardware · Citec Network Securities	remote	10 July 2000	yes

References

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.