Affects a widely deployed network proxy; DoS can disrupt services across organizations using Squid.
CVE-2026-32748
DoS in Squid proxy via ICP handling (pre-7.5) enables remote crash.
Is CVE-2026-32748 being exploited?
Not confirmed. CVE-2026-32748 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 8.9% probability of exploitation in the next 30 days.
How severe is CVE-2026-32748?
CVE-2026-32748 is rated High with a CVSS score of 8.7. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-32748?
Yes. A fix has been recorded for CVE-2026-32748. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-32748 affect?
CVE-2026-32748 affects Squid Proxy Server (pre-7.5) with ICP enabled. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-32748?
Upgrade to 7.5 or disable ICP if not needed
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Remote DoS via ICP traffic; crashes Squid when ICP is enabled (non-zero icp_port).
Patch when possible
- affected< 7.5
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.