Product by The Squid Software Foundation

The Squid Software Foundation Squid

111 known vulnerabilities in The Squid Software Foundation Squid (The Squid Software Foundation), 0 of them actively exploited (CISA KEV).

111

Vulnerabilities

Actively exploited (KEV)

Used by ransomware

Critical

Vulnerabilities

Actively exploited vulnerabilities (CISA KEV) first, then by priority. Click a column header to re-sort the table.

Vulnerabilities in The Squid Software Foundation Squid (The Squid Software Foundation)

Critical	CVE-2025-62168	Squid vulnerable to information disclosure via authentication credential leakage in error handling also in 2 other products	10.0	17.10.2025
Critical	CVE-2026-33526	Squid vulnerable to Denial of Service in ICP Request handling also in 4 other products	7.5	26.03.2026
Critical	CVE-2025-54574	Squid's URN Handling can lead to Buffer Overflow also in 1 other product	9.3	01.08.2025
High	CVE-2026-32748	Squid has Denial of Service in ICP Response handling also in 3 other products	7.5	26.03.2026
High	CVE-2023-49285	Denial of Service in HTTP Message Processing in Squid also in 1 other product	8.6	04.12.2023
High	CVE-2024-25111	SQUID-2024:1 Denial of Service in HTTP Chunked Decoding also in 3 other products	8.6	06.03.2024
Critical	CVE-2020-11945	squid-cache Squid: Remote Code Execution also in 4 other products	9.8	23.04.2020
Critical	CVE-2019-12525	squid-cache Squid: security vulnerability also in 4 other products	9.8	11.07.2019
High	CVE-2023-50269	SQUID-2023:10 Denial of Service in HTTP Request parsing also in 1 other product	8.6	14.12.2023
Critical	CVE-2019-12526	squid-cache Squid: Heap-Based Buffer Overflow also in 4 other products	9.8	26.11.2019
High	CVE-2026-61642	Squid Request Smuggling in HTTP Transfer-Encoding also in 3 other products	7.7	13.10.2026
High	CVE-2016-4553	squid-cache Squid: security vulnerability also in 2 other products	8.6	10.05.2016
High	CVE-2024-45802	Squid Denial of Service also in 1 other product	7.5	28.10.2024
High	CVE-2019-12527	squid-cache Squid: Heap-Based Buffer Overflow also in 7 other products	8.8	11.07.2019
High	CVE-2016-4554	squid-cache Squid: security vulnerability also in 2 other products	8.6	10.05.2016
Critical	CVE-2023-46846	Squid: request/response smuggling in http/1.1 and icap also in 21 other products	9.3	03.11.2023
High	CVE-2023-49286	Denial of Service in Helper Process management also in 1 other product	8.6	04.12.2023
High	CVE-2023-46848	Squid: denial of service in ftp also in 9 other products	8.6	03.11.2023
High	CVE-2016-4054	squid-cache Squid: Buffer Overflow also in 2 other products	8.1	25.04.2016
High	CVE-2016-4051	squid-cache Squid: Buffer Overflow also in 2 other products	8.8	25.04.2016
Critical	CVE-2019-12519	squid-cache Squid: security vulnerability also in 3 other products	9.8	15.04.2020
Critical	CVE-2020-15049	squid-cache Squid: security vulnerability also in 1 other product	9.9	30.06.2020
High	CVE-2016-3947	squid-cache Squid: Heap-Based Buffer Overflow also in 1 other product	8.2	07.04.2016
High	CVE-2020-8450	squid-cache Squid: Buffer Overflow also in 4 other products	7.3	04.02.2020
Medium	CVE-2024-23638	SQUID-2023:11 Denial of Service in Cache Manager also in 1 other product	6.5	23.01.2024

All vulnerabilities in search

News

Squid Memory Leak Discovered by Mythos Preview After 29 Yearssans-newsbites-mail, 26.06.2026
@RISK®: The Consensus Security Vulnerability Alert: Vol. 26, Num. 25sans-atrisk-mail, 25.06.2026
Brazil's National Emergency Alert System Breachedsans-newsbites-mail, 23.06.2026

All products by The Squid Software Foundation

Key figures

Vulnerabilities

News