CVE-2024-8134· NVD / CVE Program· CNA VulDB

D-Link DNS-1550-04 HTTP POST Request hd_config.cgi cgi_FMT_Std2R5_1st_DiskMGR command injection

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. It has been rated as critical. This issue affects the function cgi_FMT_Std2R5_1st_DiskMGR of the file /cgi-bin/hd_config.cgi of the component HTTP POST Request Handler. The manipulation of the argument f_source_dev leads to command injection. The attack may be initiated 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.

MediumCVSS 5.3 · v4.0—No exploit No fix recorded

Published: Aug 24, 2024
Updated: Jun 17, 2026
EPSS: 7.9% · 95th percentile
CWE: CWE-77

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Action score

Monitor

Low priority for now.

CVSS: 21 / 40 · 5.3 / 10
CISA KEV: 0 / 30 · Not listed
EPSS: 2 / 30 · 7.9%

CISA SSVC decision

Exploitation: proof of concept
Automatable: no
Technical impact: partial

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD: —
CNA · VulDB: 5.3; NVD has not scored this yet; the score shown is the CNA’s.

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Affected systems

Vendor	Product	CPE
dlink	dns-1550-04 firmware	cpe:2.3:o:dlink:dns-1550-04_firmware
dlink	dns-1550-04	cpe:2.3:h:dlink:dns-1550-04
dlink	dns-1200-05 firmware	cpe:2.3:o:dlink:dns-1200-05_firmware
dlink	dns-1200-05	cpe:2.3:h:dlink:dns-1200-05
dlink	dns-1100-4 firmware	cpe:2.3:o:dlink:dns-1100-4_firmware
dlink	dns-1100-4	cpe:2.3:h:dlink:dns-1100-4
dlink	dns-726-4 firmware	cpe:2.3:o:dlink:dns-726-4_firmware
dlink	dns-726-4	cpe:2.3:h:dlink:dns-726-4
dlink	dns-345 firmware	cpe:2.3:o:dlink:dns-345_firmware
dlink	dns-345	cpe:2.3:h:dlink:dns-345
dlink	dns-343 firmware	cpe:2.3:o:dlink:dns-343_firmware
dlink	dns-343	cpe:2.3:h:dlink:dns-343

and 28 more

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

dlink dnr-202l firmwareall versions
dlink dnr-322l firmwareall versions
dlink dnr-326 firmwareall versions
dlink dns-1100-4 firmwareall versions
dlink dns-120 firmwareall versions
dlink dns-1200-05 firmwareall versions
dlink dns-1550-04 firmwareall versions
dlink dns-315l firmwareall versions
dlink dns-320 firmwareall versions
dlink dns-320l firmwareall versions
dlink dns-320lw firmwareall versions
dlink dns-321 firmwareall versions
dlink dns-323 firmwareall versions
dlink dns-325 firmwareall versions
dlink dns-326 firmwareall versions
dlink dns-327l firmwareall versions
dlink dns-340l firmwareall versions
dlink dns-343 firmwareall versions
dlink dns-345 firmwareall versions
dlink dns-726-4 firmwareall versions

Versions reported by the vendor

Affected version ranges reported by the assigning authority (VulDB). Independent of NVD's CPE analysis and usually ahead of it.

D-Link DNR-202L
- 20240814affected
D-Link DNR-322L
- 20240814affected
D-Link DNR-326
- 20240814affected
D-Link DNS-1100-4
- 20240814affected
D-Link DNS-120
- 20240814affected
D-Link DNS-1200-05
- 20240814affected
D-Link DNS-1550-04
- 20240814affected
D-Link DNS-315L
- 20240814affected
D-Link DNS-320
- 20240814affected
D-Link DNS-320L
- 20240814affected
D-Link DNS-320LW
- 20240814affected
D-Link DNS-321
- 20240814affected

Same product

dlink: all records

Other highest-scoring records for the same primary product.

CVE-2024-8132D-Link DNS-1550-04 HTTP POST Request webdav_mgr.cgi webdav_mgr command injection
28Monitor
CVE-2024-8129D-Link DNS-1550-04 HTTP POST Request s3.cgi cgi_s3_modify command injection
28Monitor
CVE-2024-8133D-Link DNS-1550-04 HTTP POST Request hd_config.cgi cgi_FMT_R5_SpareDsk_DiskMGR command injection
23Monitor
CVE-2024-8131D-Link DNS-1550-04 HTTP POST Request apkg_mgr.cgi module_enable_disable command injection
23Monitor
CVE-2024-8130D-Link DNS-1550-04 HTTP POST Request s3.cgi cgi_s3 command injection
23Monitor
CVE-2024-8128D-Link DNS-1550-04 HTTP POST Request webfile_mgr.cgi cgi_add_zip command injection
23Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

No fix version is recorded for this entry. Check the references for vendor advisories.

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

Buaa1otTeam (VulDB User)reporter

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

CVE-2024-81290 days apartD-Link DNS-1550-04 HTTP POST Request s3.cgi cgi_s3_modify command injection
28Monitor
CVE-2024-81320 days apartD-Link DNS-1550-04 HTTP POST Request webdav_mgr.cgi webdav_mgr command injection
28Monitor
CVE-2024-81270 days apartD-Link DNS-1550-04 HTTP POST Request webfile_mgr.cgi cgi_unzip command injection
23Monitor
CVE-2024-81280 days apartD-Link DNS-1550-04 HTTP POST Request webfile_mgr.cgi cgi_add_zip command injection
23Monitor
CVE-2024-81310 days apartD-Link DNS-1550-04 HTTP POST Request apkg_mgr.cgi module_enable_disable command injection
23Monitor
CVE-2024-81330 days apartD-Link DNS-1550-04 HTTP POST Request hd_config.cgi cgi_FMT_R5_SpareDsk_DiskMGR command injection
23Monitor

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

Anyone who can reach it over the internet can trigger it.
A low-privileged account is enough.
No user action is required.
No special conditions are required; it is repeatable.

If successful

Confidentiality
Integrity
Availability

Attack vector: Network
Attack complexity: Low
Privileges required: Low
User interaction: None
Scope: X

Weakness class (CWE)

CWE-77 · Improper Neutralization of Special Elements used in a Command ('Command Injection')

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

nvd-secondary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

Attack patterns (CAPEC)

ATT&CK techniques

—

Noroxi analysis

No Noroxi analysis for this record yet

We don't hand-write analysis for all 385,000+ vulnerabilities; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.

We use this product, ask for help

Change log

No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.

References

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records