Loading vulnerability…
CVE-2026-101341 is a stack-based buffer overflow in NLnet Labs NSD's zone-file parser. Text tokens shorter than 32 bytes in resource-record data (RDATA), including TXT records, are processed without checking that they remain within the space reserved for RDATA. Specially formatted input permits arbitrarily sized out-of-bounds stack writes, including overwriting a callback function pointer invoked immediately after parsing, potentially enabling arbitrary code execution. Exploitation requires a crafted zone file to be supplied directly to NSD. Zone files written by NSD itself, including those maintained for secondary zones, do not use the triggering format.
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 missing RDATA bounds check in simdzone when parsing string tokens shorter than 32 bytes. The update to simdzone 0.2.7 adds the check. The content does not specify the resulting security impact or affected version ranges.
A missing RDATA bounds check in simdzone when parsing string tokens shorter than 32 bytes. Fixed in simdzone 0.2.7; the content does not specify the exploitation impact.
Missing RDATA bounds checking in simdzone when parsing string tokens shorter than 32 bytes. Fixed in simdzone 0.2.7 by adding bounds checks.
An RDATA bounds-checking flaw in simdzone while parsing string tokens shorter than 32 bytes. The fix adds checks to keep RDATA within bounds. Fixed in simdzone 0.2.7; the content does not specify the ultimate security impact.
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.