CVE-2026-5211A flaw has been found in D-Link DNS-120, DNR-202L, DNS-315L, DNS-320, DNS-320L, DNS-320LW, DNS-321, DNR-322L, DNS-323, DNS-325, DNS-326, DNS-327L, DNR-326, DNS-340L, DNS-343, DNS-345, DNS-726-4, DNS-…
Updated under an hour ago ()
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It affects dlink dnr-202l_firmware and 19 other products. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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A flaw has been found in D-Link DNS-120, DNR-202L, DNS-315L, DNS-320, DNS-320L, DNS-320LW, DNS-321, DNR-322L, DNS-323, DNS-325, DNS-326, DNS-327L, DNR-326, DNS-340L, DNS-343, DNS-345, DNS-726-4, DNS-1100-4, DNS-1200-05 and DNS-1550-04 up to 20260205. This vulnerability affects the function UPnP_AV_Server_Path_Del of the file /cgi-bin/app_mgr.cgi. Executing a manipulation of the argument f_dir can lead to stack-based buffer overflow. The attack can be executed remotely. The exploit has been published and may be used.
- CVSS
- 8.8 HIGH (v3.1, NVD)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Weakness (CWE)
- CWE-119, CWE-121, CWE-787
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Not given
- NVD analysis
- Analyzed
- Record last updated
- Jul 24, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
dlink dnr-202l_firmware dlink:dnr-202l_firmware | through 2026-02-05 | NVD |
dlink dnr-326_firmware dlink:dnr-326_firmware | through 2026-02-05 | NVD |
dlink dns-1100-4_firmware dlink:dns-1100-4_firmware | through 2026-02-05 | NVD |
dlink dns-120_firmware dlink:dns-120_firmware | through 2026-02-05 | NVD |
dlink dns-1200-05_firmware dlink:dns-1200-05_firmware | through 2026-02-05 | NVD |
dlink dns-1550-04_firmware dlink:dns-1550-04_firmware | through 2026-02-05 | NVD |
dlink dns-315l_firmware dlink:dns-315l_firmware | through 2026-02-05 | NVD |
dlink dns-320_firmware dlink:dns-320_firmware | through 2026-02-05 | NVD |
dlink dns-320l_firmware dlink:dns-320l_firmware | through 2026-02-05 | NVD |
dlink dns-320lw_firmware dlink:dns-320lw_firmware | through 2026-02-05 | NVD |
dlink dns-321_firmware dlink:dns-321_firmware | through 2026-02-05 | NVD |
dlink dns-322l_firmware dlink:dns-322l_firmware | through 2026-02-05 | NVD |
dlink dns-323_firmware dlink:dns-323_firmware | through 2026-02-05 | NVD |
dlink dns-325_firmware dlink:dns-325_firmware | through 2026-02-05 | NVD |
dlink dns-326_firmware dlink:dns-326_firmware | through 2026-02-05 | NVD |
dlink dns-327l_firmware dlink:dns-327l_firmware | through 2026-02-05 | NVD |
dlink dns-340l_firmware dlink:dns-340l_firmware | through 2026-02-05 | NVD |
dlink dns-343_firmware dlink:dns-343_firmware | through 2026-02-05 | NVD |
dlink dns-345_firmware dlink:dns-345_firmware | through 2026-02-05 | NVD |
dlink dns-726-4_firmware dlink:dns-726-4_firmware | through 2026-02-05 | NVD |
References
- https://github.com/wudipjq/my_vuln/blob/main/D-Link8/vuln_165/165.mdexploit, third-party-advisory
- https://vuldb.com/submit/780434third-party-advisory, vdb-entry
- https://vuldb.com/vuln/354347third-party-advisory, vdb-entry
- https://vuldb.com/vuln/354347/ctipermissions-required, vdb-entry
- https://www.dlink.com/product
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.