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CVE-2005-2916· NVD / CVE Program· CNA mitre

Linksys WRT54G 3.01.03, 3.03.6, 4.00.7, and possibly other versions before 4.20.7, does not verify user authentication until after an HTTP P

Linksys WRT54G 3.01.03, 3.03.6, 4.00.7, and possibly other versions before 4.20.7, does not verify user authentication until after an HTTP POST request has been processed, which allows remote attackers to (1) modify configuration using restore.cgi or (2) upload new firmware using upgrade.cgi.

MediumCVSS 5.0 · v2.0—No exploit No fix recorded
Published
Sep 14, 2005
Updated
Jun 16, 2026
EPSS
1.1% · 64th percentile
CWE
—
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Report tools

JSON

Action score

20

Monitor

Low priority for now.

CVSS
20 / 40 · 5.0 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 1.1%

Affected systems

VendorProduct
linksyswrt54g

Affected versions

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

  • linksys wrt54g3.01.3
  • linksys wrt54g3.03.6
  • linksys wrt54g4.00.7

Same product

linksys: all records

Other highest-scoring records for the same primary product.

  • CVE-2005-2799Buffer overflow in apply.cgi in Linksys WRT54G 3.01.03, 3.03.6, and possibly other versions before 4.20.7, allows remote attackers to execut
    51Plan
  • CVE-2008-1247The web interface on the Linksys WRT54g router with firmware 1.00.9 does not require credentials when invoking scripts, which allows remote
    42Plan
  • CVE-2008-1268The FTP server on the Linksys WRT54G 7 router with 7.00.1 firmware does not verify authentication credentials, which allows remote attackers
    41Plan
  • CVE-2008-1264The Linksys WRT54G router has "admin" as its default FTP password, which allows remote attackers to access sensitive files including nvram.c
    31Monitor
  • CVE-2008-1265The Linksys WRT54G router allows remote attackers to cause a denial of service (device restart) via a long username and password to the FTP
    31Monitor
  • CVE-2006-2559Linksys WRT54G Wireless-G Broadband Router allows remote attackers to bypass access restrictions and conduct unauthorized operations via a U
    31Monitor

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.

No credits in the CNA record.

Variant candidates

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

No nightly-computed relations.

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

  • No special conditions are required; it is repeatable.

If successful

Confidentiality
none
Integrity
P · data or configuration can be modified
Availability
none
Attack complexity
Low
Confidentiality impact
None
Integrity impact
P
Availability impact
None

Weakness class (CWE)

—

CVSS vector

AV:N/AC:L/Au:N/C:N/I:P/A:N

nvd-primary

Attack context

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

MITRE has no CAPEC/ATT&CK mapping for this CWE.

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