What is CVE-2021-1379?

CVE-2021-1379 is a medium-severity vulnerability in Cisco Ip Phones With Multiplatform Firmware, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 6.5/10. Published 2024-11-18.

How severe is CVE-2021-1379?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Buffer overflow in Cisco Ip Phones With Multiplatform Firmware

CVE-2021-1379

Multiple vulnerabilities in the Cisco Discovery Protocol and Link Layer Discovery Protocol (LLDP) implementations for Cisco IP Phone Series 68xx/78xx/88xx could allow an unauthenticated, adjacent attacker to execute code remotely…

Vulnerability class: Buffer Overflow

EPSS: 0.001 (30.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/RL:X/RC:X/E:X.

Affected products

Cisco Ip Phones With Multiplatform Firmware — versions 11.1.2, 11.2.1, 11.2.3
Cisco Session Initiation Protocol (Sip) Software — versions 9.0(3), 9.0(2)SR2, 9.0(2)SR1
Cisco Small Business Ip Phones — versions 7.4.8, 7.4.3, 7.5.5a

Weakness classification (CWE)

CWE-120 — Buffer Copy without Checking Size of Input (Classic Buffer Overflow)

References

Frequently asked questions

What is CVE-2021-1379?: CVE-2021-1379 is a medium-severity vulnerability in Cisco Ip Phones With Multiplatform Firmware, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 6.5/10. Published 2024-11-18.
How severe is CVE-2021-1379?: Medium severity. CVSS v3 base score is 6.5 out of 10.