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CVE-2022-26259 is an unauthenticated stack-based buffer overflow in the RTSP parsing logic of multiple Xiongmai DVR devices, including NBD80X16S-KL, NBD80X09S-KL, NBD80X08S-KL, NBD80X09RA-KL, AHB80X04R-MH, AHB80X04R-MH-V2, AHB80X04-R-MH-V3, AHB80N16T-GS, AHB80N32F4-LME, and NBD90S0VT-QW. The flaw is reachable over the network via the RTSP service on TCP port 554 by sending a crafted RTSP request. The provided content characterizes the issue as a stack-based overflow in RTSP parsing and notes that exploitation constraints include payload restrictions such as no null bytes and no space characters. Although the short description mentions denial of service, the supporting content states VulnCheck successfully developed remote code execution against affected Xiongmai test devices, indicating the overflow is exploitable beyond a crash condition on at least some firmware variants.
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What an attacker gets, and what they’ve been doing with it.
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Patch, then assume compromise.
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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.
3 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A newer Xiongmai vulnerability mentioned for comparison, with the article suggesting older Xiongmai flaws are more likely relevant to 7777-Botnet infections.
A stack-based buffer overflow in RTSP request parsing (TCP/554) on Xiongmai devices, exploitable for RCE with firmware-dependent techniques (e.g., ROP/system gadgets or jumping to debug/telnetd helpers).
A stack-based buffer overflow in RTSP request parsing (TCP/554) on Xiongmai devices, exploitable for RCE with firmware-dependent techniques (e.g., ROP/system gadgets or jumping to debug/telnetd helpers).
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.