How severe is CVE-2023-31761?

CVE-2023-31761 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over an adjacent network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2023-31761 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (20th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-31761?

CVE-2023-31761 affects Blitzwolf Bw-is22 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-31761?

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-2023-31761 published?

CVE-2023-31761 was published on 2023-05-24 and last updated on 2026-06-17.

CVE-2023-31761

CVE-2023-31761 is a high-severity vulnerability in Blitzwolf Bw-is22 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-294.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 0% (20th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-294
Affected product: Blitzwolf Bw-is22 Firmware
Published: 2023-05-24
Last modified: 2026-06-17

Description

Weak security in the transmitter of Blitzwolf BW-IS22 Smart Home Security Alarm v1.0 allows attackers to gain full access to the system via a code replay attack.

Frequently asked questions

What is CVE-2023-31761?: Weak security in the transmitter of Blitzwolf BW-IS22 Smart Home Security Alarm v1.0 allows attackers to gain full access to the system via a code replay attack.
How severe is CVE-2023-31761?: CVE-2023-31761 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over an adjacent network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2023-31761 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (20th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-31761?: CVE-2023-31761 affects Blitzwolf Bw-is22 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-31761?: 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-2023-31761 published?: CVE-2023-31761 was published on 2023-05-24 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:blitzwolf:bw-is22_firmware:1.0:*:*:*:*:*:*:*

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