CVE-2022-27631
CVE-2022-27631 is a critical-severity vulnerability in Dd-wrt with a CVSS 3.x base score of 9.8. 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: Critical (CVSS 3.x base score 9.8)
- EPSS exploit prediction: 1% (58th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-787
- Affected product: Dd-wrt
- Published:
- Last modified:
Description
A memory corruption vulnerability exists in the httpd unescape functionality of DD-WRT Revision 32270 - Revision 48599. A specially-crafted HTTP request can lead to memory corruption. An attacker can send a network request to trigger this vulnerability.
Frequently asked questions
- What is CVE-2022-27631?
- A memory corruption vulnerability exists in the httpd unescape functionality of DD-WRT Revision 32270 - Revision 48599. A specially-crafted HTTP request can lead to memory corruption. An attacker can send a network request to trigger this vulnerability.
- How severe is CVE-2022-27631?
- CVE-2022-27631 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2022-27631 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (58th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2022-27631?
- CVE-2022-27631 affects Dd-wrt. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2022-27631?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
- When was CVE-2022-27631 published?
- CVE-2022-27631 was published on 2022-08-05 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:o:dd-wrt:dd-wrt:*:*:*:*:*:*:*:*
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