CVE-2024-8408
CVE-2024-8408 is a medium-severity vulnerability in Linksys Wrt54g Firmware with a CVSS 3.x base score of 6.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-787.
Key facts
- Severity: Medium (CVSS 3.x base score 6.3)
- CVSS v2: 6.5
- CVSS v4: 5.3
- EPSS exploit prediction: 1% (51st percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2024-49154
- Weakness: CWE-787
- Affected product: Linksys Wrt54g Firmware
- Published:
- Last modified:
Description
A vulnerability was found in Linksys WRT54G 4.21.5. It has been rated as critical. Affected by this issue is the function validate_services_port of the file /apply.cgi of the component POST Parameter Handler. The manipulation of the argument services_array leads to stack-based buffer overflow. The attack may be launched remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
Frequently asked questions
- What is CVE-2024-8408?
- A vulnerability was found in Linksys WRT54G 4.21.5. It has been rated as critical. Affected by this issue is the function validate_services_port of the file /apply.cgi of the component POST Parameter Handler. The manipulation of the argument services_array leads to stack-based buffer overflow. The attack may be launched remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
- How severe is CVE-2024-8408?
- CVE-2024-8408 has a CVSS 3.x base score of 6.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.
- Is CVE-2024-8408 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (51st percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2024-8408?
- CVE-2024-8408 affects Linksys Wrt54g Firmware. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2024-8408?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- Does CVE-2024-8408 have an EU (EUVD) identifier?
- Yes. CVE-2024-8408 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-49154.
- When was CVE-2024-8408 published?
- CVE-2024-8408 was published on 2024-09-04 and last updated on 2026-06-17.
References
- https://github.com/BuaaIOTTeam/Iot_Linksys/blob/main/Linksys_WRT54G_validate_services_port.md
- https://vuldb.com/?ctiid.276488
- https://vuldb.com/?id.276488
- https://vuldb.com/?submit.398567
- https://www.linksys.com/
Affected products (1)
- cpe:2.3:o:linksys:wrt54g_firmware:4.21.5:*:*:*:*:*:*:*
More vulnerabilities in Linksys Wrt54g Firmware
- CVE-2024-41281 — High (CVSS 8.8): Linksys WRT54G v4.21.5 has a stack overflow vulnerability in get_merge_mac function.
All CVEs affecting Linksys Wrt54g Firmware →
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