CVE-2026-76490
As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco…
- Risk score
- 72/100
- CVSS
- 8.6 v3.1
- Exploit chance (30 days)
- 0.3%
- Published
- 21 Oct 2026
Open in the live forecast Today's forecast
What to know
- What it is
- The vulnerability is related to out-of-bounds writes, tracked by CWE-787. An attacker could potentially exploit this flaw to achieve arbitrary code execution.
- Affected
- {'product': 'Cisco Expressway Series', 'vendor': 'Cisco'}
- Fix
- Check the linked advisory for details on the fix.
- Exploitation
- No known exploitation
Why it is Amber
- CVSS 8.6 high
- Remotely exploitable without logging in
- On your watchlist: cisco
References
Original description
As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco Expressway Series software engineering team has conducted a comprehensive internal security review. This review resulted in software hardening releases that address multiple internally discovered vulnerabilities. The vulnerabilities tracked by CVE-2026-76490 are related to issues concerning out-of-bounds writes that are grouped under the Common Weakness Enumeration (CWE) Base CWE-787.
Last activity 21 Oct 2026. Patch Forecast updates every hour.