Loading vulnerability…
CVE-2026-90558 is a stack-based buffer overflow in sngrep through version 1.8.4. SIP attribute formatting routines use fixed 255-byte stack buffers when processing header values. A SIP packet containing an oversized Call-ID, X-Call-ID, or other header value can exceed the buffer boundary during packet parsing and rendering, causing memory corruption.
Mallory correlates every CVE against your assets, your vendors, and active adversary campaigns. Know which vulnerabilities matter for you, not just which ones are loud.
What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.
What an attacker gets, and what they’ve been doing with it.
If you can’t patch tonight, do this now.
Patch, then assume compromise.
No public exploits tracked yet. Mallory keeps watching.
No public exploit code observed for this vulnerability.
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
14 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A stack buffer overflow in sngrep through version 1.8.4. Oversized SIP header values, including Call-ID and X-Call-ID fields exceeding a 255-byte buffer limit, can cause a crash or potentially arbitrary code execution during packet parsing and rendering.
A critical network-reachable stack buffer overflow in sngrep through version 1.8.4. Oversized SIP header values, including Call-ID and X-Call-ID, can exceed a 255-byte formatting buffer, potentially causing denial of service or arbitrary code execution during SIP packet parsing and rendering.
A critical network-reachable vulnerability affecting Debian Linux 12.0, 13.0, and 14.0, with CVSS v3 and v4 vectors indicating no required privileges or user interaction and high impact to confidentiality, integrity, and availability.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.