CVE-2026-5310
CVE-2026-5310 is a low-severity vulnerability with a CVSS 3.x base score of 2.5. 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-320.
Key facts
- Severity: Low (CVSS 3.x base score 2.5)
- CVSS v2: 1.0
- CVSS v4: 1.1
- EPSS exploit prediction: 0% (1st percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2026-17966
- Weakness: CWE-320
- Published:
- Last modified:
Description
A vulnerability was identified in Enter Software Iperius Backup up to 8.7.2. This impacts an unknown function of the file IperiusAccounts.ini. Such manipulation leads to use of hard-coded cryptographic key . The attack must be carried out locally. This attack is characterized by high complexity. The exploitability is said to be difficult. The exploit is publicly available and might be used. Upgrading to version 8.7.4 will fix this issue. It is suggested to upgrade the affected component. The vendor was contacted early, responded in a very professional manner and quickly released a fixed version of the affected product.
Frequently asked questions
- What is CVE-2026-5310?
- A vulnerability was identified in Enter Software Iperius Backup up to 8.7.2. This impacts an unknown function of the file IperiusAccounts.ini. Such manipulation leads to use of hard-coded cryptographic key . The attack must be carried out locally. This attack is characterized by high complexity. The exploitability is said to be difficult. The exploit is publicly available and might be used. Upgrading to version 8.7.4 will fix this issue. It is suggested to upgrade the affected component. The vendor was contacted early, responded in a very professional manner and quickly released a fixed version of the affected product.
- How severe is CVE-2026-5310?
- CVE-2026-5310 has a CVSS 3.x base score of 2.5, rated low severity. It is exploitable over local access with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
- Is CVE-2026-5310 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (1st percentile), an estimate of the probability of exploitation in the next 30 days.
- How do I fix CVE-2026-5310?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- Does CVE-2026-5310 have an EU (EUVD) identifier?
- Yes. CVE-2026-5310 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-17966.
- When was CVE-2026-5310 published?
- CVE-2026-5310 was published on 2026-04-01 and last updated on 2026-06-17.
References
- https://github.com/VulnaraByte/iperius-backup-security-advisories
- https://github.com/VulnaraByte/iperius-backup-security-advisories/blob/main/poc/decrypt_iperius.py
- https://vuldb.com/submit/778602
- https://vuldb.com/vuln/354639
- https://vuldb.com/vuln/354639/cti
- https://www.iperiusbackup.com/download-software-backup.aspx
Other CWE-320 vulnerabilities
- CVE-2016-10467 — Critical (CVSS 9.8): In Android before 2018-04-05 or earlier security patch level on Qualcomm Snapdragon Automobile and Snapdragon Mobile SD…
- CVE-2016-10421 — Critical (CVSS 9.8): In Android before 2018-04-05 or earlier security patch level on Qualcomm Snapdragon Mobile and Snapdragon Wear MDM9206,…
- CVE-2018-0124 — Critical (CVSS 9.8): A vulnerability in Cisco Unified Communications Domain Manager could allow an unauthenticated, remote attacker to…
- CVE-2015-0936 — Critical (CVSS 9.8): Ceragon FibeAir IP-10 have a default SSH public key in the authorized_keys file for the mateidu user, which allows…
- CVE-2015-4166 — Critical (CVSS 9.8): Cloudera Key Trustee Server before 5.4.3 does not store keys synchronously, which might allow attackers to have…
- CVE-2024-36391 — Critical (CVSS 9.1): MileSight DeviceHub - CWE-320: Key Management Errors may allow Authentication Bypass and Man-In-The-Middle Traffic