Buffer overflow in Cisco Adaptive_security_appliance_software
CVE-2021-34783
A vulnerability in the software-based SSL/TLS message handler of Cisco Adaptive Security Appliance (ASA) Software and Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause an affected device to re…
Vulnerability class: Buffer Overflow
EPSS: 0.015 (72.0th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.6 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H.
Affected products
- Cisco Adaptive_security_appliance_software
- Cisco Asa_5505
- Cisco Asa_5505_firmware — versions 009.016\(001\), 009.016\(001.025\)
- Cisco Asa_5512-x
- Cisco Asa_5512-x_firmware — versions 009.016\(001\), 009.016\(001.025\)
- Cisco Asa_5515-x
- Cisco Asa_5515-x_firmware — versions 009.016\(001\), 009.016\(001.025\)
- Cisco Asa_5525-x
- Cisco Asa_5525-x_firmware — versions 009.016\(001\), 009.016\(001.025\)
- Cisco Asa_5545-x
Weakness classification (CWE)
References
- psirt@cisco.com (x_refsource_CISCO, vendor-advisory, Vendor Advisory)
Frequently asked questions
- What is CVE-2021-34783?
- CVE-2021-34783 is a high-severity vulnerability in Cisco Adaptive_security_appliance_software, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 8.6/10. Published 2021-10-27.
- How severe is CVE-2021-34783?
- High severity. CVSS v3 base score is 8.6 out of 10.