Is CVE-2023-28769 in the CISA KEV catalog?

No. CVE-2023-28769 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2023-28769?

CVE-2023-28769 has a CVSS v3 base score of 9.8 (CRITICAL).

What is the EPSS score for CVE-2023-28769?

CVE-2023-28769 has an EPSS score of 5.42% (92th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2023-28769?

Upgrade dx5401-b0 firmware to 5.17(abyo.1)c0 or later.

CVE & CISA-KEV Catalog

CVE-2023-28769

CRITICALEPSS 92th pctl

9.8

CVSS v3

NVD

Description

The buffer overflow vulnerability in the library “libclinkc.so” of the web server “zhttpd” in Zyxel DX5401-B0 firmware versions prior to V5.17(ABYO.1)C0 could allow a remote unauthenticated attacker to execute some OS commands or to cause denial-of-service (DoS) conditions on a vulnerable device.

CWE-120Classic Buffer Overflow

How to fix

Remediation Available

dx5401-b0 firmwareNVD

Affected:< 5.17(abyo.1)c0Fixed in:5.17(abyo.1)c0CVE-2023-28769derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploit Intelligence

5.42%probability of exploitation in 30 days

92ndpercentile

High risk: more likely to be exploited than 92% of all known CVEs.

References

Vendor Advisory1

zyxel.com

Related Vulnerabilities

Other CWE-120 (Classic Buffer Overflow) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2014-0195	Medium	6.8	100%	-	Fix
CVE-2017-7269	Critical	9.8	100%	KEV	-
CVE-2019-11043	High	8.7	99%	KEV + Ransom	Fix
CVE-2011-4862	High	10.0	95%	-	Fix
CVE-2007-5659	High	7.8	94%	KEV	Fix
CVE-2022-3786	High	7.5	91%	-	Fix

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.