How severe is CVE-2023-27853?

CVE-2023-27853 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-2023-27853 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 20% (97th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-27853?

CVE-2023-27853 affects Netgear Rax30 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-27853?

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-2023-27853 published?

CVE-2023-27853 was published on 2023-03-10 and last updated on 2026-06-17.

CVE-2023-27853

CVE-2023-27853 is a critical-severity vulnerability in Netgear Rax30 Firmware with a CVSS 3.x base score of 9.8. Its EPSS exploit-prediction score of 20% places it in the 97th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-120.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
EPSS exploit prediction: 20% (97th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-120
Affected product: Netgear Rax30 Firmware
Published: 2023-03-10
Last modified: 2026-06-17

Description

NETGEAR Nighthawk WiFi6 Router prior to V1.0.10.94 contains a format string vulnerability in a SOAP service that could allow an attacker to execute arbitrary code on the device.

Frequently asked questions

What is CVE-2023-27853?: NETGEAR Nighthawk WiFi6 Router prior to V1.0.10.94 contains a format string vulnerability in a SOAP service that could allow an attacker to execute arbitrary code on the device.
How severe is CVE-2023-27853?: CVE-2023-27853 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-2023-27853 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 20% (97th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-27853?: CVE-2023-27853 affects Netgear Rax30 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-27853?: 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-2023-27853 published?: CVE-2023-27853 was published on 2023-03-10 and last updated on 2026-06-17.

References

https://tenable.com/security/research/tra-2023-9

Affected products (1)

cpe:2.3:o:netgear:rax30_firmware:*:*:*:*:*:*:*:*

More vulnerabilities in Netgear Rax30 Firmware

CVE-2025-44658 — Critical (CVSS 9.8): In Netgear RAX30 V1.0.10.94, a PHP-FPM misconfiguration vulnerability is caused by not following the specification to…
CVE-2023-1327 — Critical (CVSS 9.8): Netgear RAX30 (AX2400), prior to version 1.0.6.74, was affected by an authentication bypass vulnerability, allowing an…
CVE-2023-27852 — Critical (CVSS 9.8): NETGEAR Nighthawk WiFi6 Router prior to V1.0.10.94 contains a buffer overflow vulnerability in various CGI mechanisms…
CVE-2026-9211 — High (CVSS 8.8): An unauthenticated user on the local network can gain control of the router and make unauthorized changes to its…
CVE-2023-51635 — High (CVSS 8.8): NETGEAR RAX30 fing_dil Stack-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows…
CVE-2023-40480 — High (CVSS 8.8): NETGEAR RAX30 DHCP Server Command Injection Remote Code Execution Vulnerability. This vulnerability allows…

All CVEs affecting Netgear Rax30 Firmware →

Other CWE-120 (Classic Buffer Overflow) vulnerabilities

CVE-2025-48611 — Critical (CVSS 10.0): In DeviceId of DeviceId.java, there is a possible desync in persistence due to a missing bounds check. This could lead…
CVE-2026-24823 — Critical (CVSS 10.0): Out-of-bounds Write, Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') vulnerability in FASTSHIFT…
CVE-2026-24810 — Critical (CVSS 10.0): Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') vulnerability in rethinkdb (src/cjson modules).…
CVE-2026-24800 — Critical (CVSS 10.0): Out-of-bounds Write, Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') vulnerability in tildearrow…
CVE-2025-9962 — Critical (CVSS 10.0): A buffer overflow vulnerability in Novakon P series allows attackers to gain root permission without prior…
CVE-2010-10016 — Critical (CVSS 10.0): BS.Player version 2.57 (build 1051) contains a vulnerability in its playlist import functionality. When processing .m3u…

Browse all CWE-120 (Classic Buffer Overflow) vulnerabilities →