CVE-2023-22923
CVE-2023-22923 is a medium-severity vulnerability in Zyxel Nbg-418n Firmware with a CVSS 3.x base score of 6.5. 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-134.
Key facts
- Severity: Medium (CVSS 3.x base score 6.5)
- EPSS exploit prediction: 1% (52nd percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-134
- Affected product: Zyxel Nbg-418n Firmware
- Published:
- Last modified:
Description
A format string vulnerability in a binary of the Zyxel NBG-418N v2 firmware versions prior to V1.00(AARP.14)C0 could allow a remote authenticated attacker to cause denial-of-service (DoS) conditions on an affected device.
Frequently asked questions
- What is CVE-2023-22923?
- A format string vulnerability in a binary of the Zyxel NBG-418N v2 firmware versions prior to V1.00(AARP.14)C0 could allow a remote authenticated attacker to cause denial-of-service (DoS) conditions on an affected device.
- How severe is CVE-2023-22923?
- CVE-2023-22923 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
- Is CVE-2023-22923 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (52nd percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2023-22923?
- CVE-2023-22923 affects Zyxel Nbg-418n Firmware. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2023-22923?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2023-22923 published?
- CVE-2023-22923 was published on 2023-05-01 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:o:zyxel:nbg-418n_firmware:*:*:*:*:*:*:*:*
More vulnerabilities in Zyxel Nbg-418n Firmware
- CVE-2019-6710 — High (CVSS 8.8): Zyxel NBG-418N v2 v1.00(AAXM.4)C0 devices allow login.cgi CSRF.
- CVE-2015-7283 — High (CVSS 8.1): The web administration interface on ZyXEL NBG-418N devices with firmware 1.00(AADZ.3)C0 has a default password of 1234…
- CVE-2015-7284 — High (CVSS 8.0): Cross-site request forgery (CSRF) vulnerability on ZyXEL NBG-418N devices with firmware 1.00(AADZ.3)C0 allows remote…
- CVE-2023-22922 — High (CVSS 7.5): A buffer overflow vulnerability in the Zyxel NBG-418N v2 firmware versions prior to V1.00(AARP.14)C0 could allow a…
- CVE-2023-22921 — High (CVSS 7.5): A cross-site scripting (XSS) vulnerability in the Zyxel NBG-418N v2 firmware versions prior to V1.00(AARP.14)C0 could…
- CVE-2022-45441 — Medium (CVSS 6.1): A cross-site scripting (XSS) vulnerability in Zyxel NBG-418N v2 firmware versions prior to V1.00(AARP.13)C0, which…
All CVEs affecting Zyxel Nbg-418n Firmware →
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