How severe is CVE-2023-37758?

CVE-2023-37758 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2023-37758 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (63rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-37758?

CVE-2023-37758 affects Dlink Dir-815 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-37758?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2023-37758 published?

CVE-2023-37758 was published on 2023-07-18 and last updated on 2026-06-17.

CVE-2023-37758

CVE-2023-37758 is a high-severity vulnerability in Dlink Dir-815 Firmware with a CVSS 3.x base score of 7.5. 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-120.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 1% (63rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-120
Affected product: Dlink Dir-815 Firmware
Published: 2023-07-18
Last modified: 2026-06-17

Description

D-LINK DIR-815 v1.01 was discovered to contain a buffer overflow via the component /web/captcha.cgi.

Frequently asked questions

What is CVE-2023-37758?: D-LINK DIR-815 v1.01 was discovered to contain a buffer overflow via the component /web/captcha.cgi.
How severe is CVE-2023-37758?: CVE-2023-37758 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2023-37758 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (63rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-37758?: CVE-2023-37758 affects Dlink Dir-815 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-37758?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2023-37758 published?: CVE-2023-37758 was published on 2023-07-18 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:dlink:dir-815_firmware:1.0.1:*:*:*:*:*:*:*

More vulnerabilities in Dlink Dir-815 Firmware

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CVE-2023-51123 — Critical (CVSS 9.8): An issue discovered in D-Link dir815 v.1.01SSb08.bin allows a remote attacker to execute arbitrary code via a crafted…
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…
CVE-2015-0150 — Critical (CVSS 9.8): The remote administration UI in D-Link DIR-815 devices with firmware before 2.07.B01 allows remote attackers to bypass…

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