CVE-2024-3273
This CVE is being exploited. Apply the vendor fix, or take the service off the internet until you can, then check your logs for attempts.
What it is
** UNSUPPORTED WHEN ASSIGNED ** A vulnerability, which was classified as critical, was found in D-Link DNS-320L, DNS-325, DNS-327L and DNS-340L up to 20240403. Affected is an unknown function of the file /cgi-bin/nas_sharing.cgi of the component HTTP GET Request Handler. The manipulation of the argument system leads to command injection. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. The identifier of this vulnerability is VDB-259284. NOTE: This vulnerability only affects products that are no longer supported by the maintainer. NOTE: Vendor was contacted early and confirmed immediately that the product is end-of-life. It should be retired and replaced.
Live exploitation on the huntback network (30 days)
Detection
Evidence
Confirmed exploited. Our decoys have seen it exploited before (2 attempts), not in the last 14 days; CISA added it to KEV 945 days ago.
Last attempt. 2 attempts on our decoys, 0 in the last 14 days
First exploitation attempt on our decoys
Added to CISA Known Exploited Vulnerabilities
Published
Nuclei detection template available
Observed: our own decoys saw it. Reported: CISA, the vendor or another named source says so. Weaponised: public exploit code or a scanner template exists. Methodology
Questions
Is CVE-2024-3273 being exploited in the wild?
Yes. The huntback decoy network captured 2 exploitation attempts from 2 distinct source IPs; the most recent was on 2026-09-15. It is also in the CISA KEV catalogue.
Can CVE-2024-3273 be detected on the network?
Yes. huntback carries a network signature for CVE-2024-3273, so attempts against a decoy are tagged in real time.
How huntback helps
Deploy a decoy that emulates Dnr-202l and you will see every attempt at this CVE the moment it lands, with the full payload, the attacker's infrastructure, and any stage-2 loader. Then huntback can scan the attacker back.
Related
NVD record → Browse all CVEs → Live malware and C2 finds → Novel-attack discovery → Deploy a decoy →API
This record, with its evidence timeline, as JSON:
curl -H "X-API-Key: $HUNTBACK_KEY" https://app.huntback.io/api/v1/evidence/CVE-2024-3273