How severe is CVE-2023-51123?

CVE-2023-51123 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-2023-51123 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 24% (98th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-51123?

CVE-2023-51123 affects Dlink Dir-815 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-51123?

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.

Does CVE-2023-51123 have an EU (EUVD) identifier?

Yes. CVE-2023-51123 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-55845.

When was CVE-2023-51123 published?

CVE-2023-51123 was published on 2024-01-10 and last updated on 2026-06-17.

CVE-2023-51123

CVE-2023-51123 is a critical-severity vulnerability in Dlink Dir-815 Firmware with a CVSS 3.x base score of 9.8. Its EPSS exploit-prediction score of 24% places it in the 98th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-78.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
EPSS exploit prediction: 24% (98th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2023-55845
Weakness: CWE-78
Affected product: Dlink Dir-815 Firmware
Published: 2024-01-10
Last modified: 2026-06-17

Description

An issue discovered in D-Link dir815 v.1.01SSb08.bin allows a remote attacker to execute arbitrary code via a crafted POST request to the service parameter in the soapcgi_main function of the cgibin binary component.

Frequently asked questions

What is CVE-2023-51123?: An issue discovered in D-Link dir815 v.1.01SSb08.bin allows a remote attacker to execute arbitrary code via a crafted POST request to the service parameter in the soapcgi_main function of the cgibin binary component.
How severe is CVE-2023-51123?: CVE-2023-51123 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-2023-51123 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 24% (98th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-51123?: CVE-2023-51123 affects Dlink Dir-815 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-51123?: 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.
Does CVE-2023-51123 have an EU (EUVD) identifier?: Yes. CVE-2023-51123 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-55845.
When was CVE-2023-51123 published?: CVE-2023-51123 was published on 2024-01-10 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:dlink:dir-815_firmware:1.01ssb08.bin:*:*:*:*:*:*:*

More vulnerabilities in Dlink Dir-815 Firmware

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CVE-2024-22651 — Critical (CVSS 9.8): There is a command injection vulnerability in the ssdpcgi_main function of cgibin binary in D-Link DIR-815 router…
CVE-2018-10106 — Critical (CVSS 9.8): D-Link DIR-815 REV. B (with firmware through DIR-815_REVB_FIRMWARE_PATCH_2.07.B01) devices have permission bypass and…
CVE-2015-0152 — Critical (CVSS 9.8): D-Link DIR-815 devices with firmware before 2.07.B01 allow remote attackers to obtain sensitive information by…
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