CVE-2023-31277
CVE-2023-31277 is a high-severity vulnerability in Piigab M-bus 900s 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-523.
Key facts
- Severity: High (CVSS 3.x base score 7.5)
- EPSS exploit prediction: 1% (43rd percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-523
- Affected product: Piigab M-bus 900s Firmware
- Published:
- Last modified:
Description
PiiGAB M-Bus transmits credentials in plaintext format.
Frequently asked questions
- What is CVE-2023-31277?
- PiiGAB M-Bus transmits credentials in plaintext format.
- How severe is CVE-2023-31277?
- CVE-2023-31277 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 high, integrity none, and availability none.
- Is CVE-2023-31277 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (43rd percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2023-31277?
- CVE-2023-31277 affects Piigab M-bus 900s Firmware. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2023-31277?
- 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-2023-31277 published?
- CVE-2023-31277 was published on 2023-07-06 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:o:piigab:m-bus_900s_firmware:-:*:*:*:*:*:*:*
More vulnerabilities in Piigab M-bus 900s Firmware
- CVE-2023-35987 — Critical (CVSS 9.8): PiiGAB M-Bus contains hard-coded credentials which it uses for authentication.
- CVE-2023-35120 — High (CVSS 8.8): PiiGAB M-Bus is vulnerable to cross-site request forgery. An attacker who wants to execute a certain command could send…
- CVE-2023-36859 — High (CVSS 8.8): PiiGAB M-Bus SoftwarePack 900S does not correctly sanitize user input, which could allow an attacker to inject…
- CVE-2023-32652 — High (CVSS 8.0): PiiGAB M-Bus does not validate identification strings before processing, which could make it vulnerable to cross-site…
- CVE-2023-34995 — High (CVSS 7.5): There are no requirements for setting a complex password for PiiGAB M-Bus, which could contribute to a successful…
- CVE-2023-34433 — High (CVSS 7.5): PiiGAB M-Bus stores passwords using a weak hash algorithm.
All CVEs affecting Piigab M-bus 900s Firmware →
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