Dns 120 FirmwareOperating system · Dlink

CVE-2024-7832

HIGH · 8.8 CVSS v3.1 Published 2024-08-15
No fix yet
No fix has been published. The vendor has not shipped a fixed release or patch. You remain exposed.
See remediation →
94/100
Remediation priority · Urgent
Public exploit Remotely reachable Zero-click

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
** UNSUPPORTED WHEN ASSIGNED ** A vulnerability was 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 20240814 and classified as critical. Affected by this issue is the function cgi_get_fullscreen_photos of the file /cgi-bin/photocenter_mgr.cgi. The manipulation of the argument user leads to buffer overflow. The attack may be launched remotely. The exploit has been disclosed to the public and may be used. NOTE: This vulnerability only affects products that are no longer supported by the maintainer. NOTE: Vendor was contacted early and confirmed that the product is end-of-life. It should be retired and replaced.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis
How this class of weakness works · CWE-120

A fixed-size buffer is filled without checking the length of the incoming data, so it overflows into neighbouring memory. This is the classic overflow attackers use to overwrite return addresses and hijack execution. The fix is strict length checks and safe, bounded string and memory functions.

General guidance for the classic buffer overflow class — the official description and references above are authoritative for this specific CVE. Want a bespoke review and a reviewed fix? Ask our team →

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
Dns 120 FirmwareOperating system
Affected:all versions
Dnr 202l FirmwareOperating system
Affected:all versions
Dns 315l FirmwareOperating system
Affected:all versions
Dns 320 FirmwareOperating system
Affected:all versions
Dns 320l FirmwareOperating system
Affected:all versions
Dns 320lw FirmwareOperating system
Affected:all versions
Dns 321 FirmwareOperating system
Affected:all versions
Dnr 322l FirmwareOperating system
Affected:all versions

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

dbcve · scoped
Recommended fix High confidence
  1. 1. Identify all D-Link devices running the affected firmware models (DNS-120, DNR-202L, DNS-315L, DNS-320, DNS-320L, DNS-320LW, DNS-321, DNR-322L) in the network inventory.
  2. 2. Note that D-Link has officially declared these products as end-of-life (EOL) and no longer supported.
  3. 3. Discontinue use of these devices as recommended by the vendor - they should be retired and replaced with currently supported hardware.
  4. 4. If immediate retirement is not possible, isolate these devices on a restricted network segment with firewall rules limiting access to the photocenter_mgr.cgi web interface.
  5. 5. Monitor vendor security announcements for any unexpected patches, though none are currently planned for these EOL products.
Caveat These are end-of-life products with no available upgrade path or firmware updates - replacement with supported hardware is required

Generated from the published advisory — verify against the referenced sources before acting.

No vendor fix exists Dns 120 Firmware has not published a patch for this.

There is no version to upgrade to and no patch to apply. Every affected install stays exposed until the vendor ships a fix — or somebody else builds one.

Add your voice

Free. We build fixes in the order the community asks for them — and we’ll tell you the moment this one lands.

Can’t wait

We develop and verify an original fix where the vendor hasn’t, from $3,200. Deployed to your staging first — never straight to production.

Scope it with us

See what else the community needs solved on the solutions-needed board.

Scan for this in your stack

Free · runs locally
dbcve dependency scanner

Check whether your project pulls in CVE-2024-7832 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.

References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2024-7832 in production — separate from our analysis above.

No notes yet

Be the first to add a field note for this CVE — a mitigation you’ve verified, a version caveat, or a link to a working fix. Sign in above to contribute.

What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
  • No weaponised exploit code, or anything meant to cause harm
  • No spam, self-promotion, credentials, or personal data