Low exploit reference

CVE-2026-5310 — Enter Software Iperius Backup IperiusAccounts.ini hard-coded key

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.

Published Apr 1, 2026 · Updated Oct 13, 2026 · Sources: NIST National Vulnerability Database, CVE Program (cve.org) e CISA ADP · CNA: VulDB

Low

Who exploits it and how urgent it is

A 0–100 score combining confirmed exploitation, ransomware and APT use, public exploits, EPSS and severity.

No exploitation signal in the sources consulted so far.

How the score was calculated

EPSS 0.1% (30-day exploitation probability)+0
CISA SSVC: exploitation "poc"+5

The score orders the patch queue; it does not replace your asset context (internet exposure, criticality, compensating controls).

Triage

Is it exploited, how likely is exploitation, what does it touch, and how severe do the sources call it.

Exploitation

Not confirmed

Not in CISA KEV — an absence of record, not proof it is unexploited.

EPSS FIRST

0.13%

ahead of 2% of scored CVEs · Oct 14, 2026

Affects

Enter Software

Iperius Backup

CVSS base

2.5

Low · 2 source(s)

CISA SSVC assessment CISA

Three decision points CISA publishes for the CVEs it assesses (SSVC 2.0.3). A stakeholder decision, not a severity score.

Exploitation

Proof of concept

none · proof-of-concept · active

Automatable

can an attacker script the kill-chain steps

Technical impact

Partial

partial · total control of the vulnerable component

Remediation

Fixes and mitigations documented by the sources — linked to the original advisory.

No fix documented by the sources we poll. That does not mean none exists: check the vendor advisory.

First 24 hours

Ordered from the record’s own fields — exposure first, because you cannot patch what you have not found. A rule-generated starting point.

Identify exposed assets running the affected vendor/product/version combinations (Enter Software Iperius Backup).
No fix documented in the sources: reduce exposure and monitor the vendor advisory.
Search available logs for exploit probes, errors and authentication anomalies.

Affected scope

Vendor, product and versions as the sources word them.

Vendor	Product	Versions	Status	Source
Enter Software	Iperius Backup	version 8.7.0version 8.7.1version 8.7.2	Vulnerable	CVE Program (cve.org) e CISA ADP

Attack characteristics

The CVSS vector, decoded. It describes the attack, not your exposure to it.

Attack vector

Local

Attack complexity

High

Privileges required

Low

User interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

None

Every base score collected

Sources score independently and may disagree; each row says who scored it and under which version.

Score	Version	Severity	Expl.	Impact	Scored by
2.0	CVSS 4.0	Low	—	—	VulDB via CVE Program (cve.org) e CISA ADP
1.1	CVSS 4.0	Low	—	—	cna@vuldb.com via NIST National Vulnerability Database
2.5	CVSS 3.1	Low	1.0	1.4	cna@vuldb.com via NIST National Vulnerability Database
2.5	CVSS 3.1	Low	—	—	VulDB via CVE Program (cve.org) e CISA ADP
2.5	CVSS 3.0	Low	—	—	VulDB via CVE Program (cve.org) e CISA ADP
1.0	CVSS 2.0	Low	1.5	2.9	cna@vuldb.com via NIST National Vulnerability Database
1.0	CVSS 2.0	Low	—	—	VulDB via CVE Program (cve.org) e CISA ADP

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N (score shown at the top: cna@vuldb.com)

Weakness MITRE

Weakness class according to MITRE’s CWE catalog.

CWE-320

Other CVEs with this weakness →

EPSS over time FIRST

Oct 13, 2026 → Oct 14, 2026 · 2 reading(s) · max 0.13%

Detection

Read off the CVSS vector and the weakness class. Starting points, not tested rules.

Local/physical vector: focus on endpoint telemetry (EDR) from affected hosts.

endpoint telemetry (EDR)

Timeline

What happened to this CVE, newest first.

2026
Affected products added · enter software/iperius backup
Oct 13, 2026 · CVE Program (cve.org) e CISA ADP
SSVC assessment updated
Oct 13, 2026 · CVE Program (cve.org) e CISA ADP
Record published
Oct 13, 2026
CVSS changed · 2.5
Oct 13, 2026 · NIST National Vulnerability Database
Source status changed · → Deferred
Oct 13, 2026 · NIST National Vulnerability Database
Record created in this database
Oct 13, 2026 · NIST National Vulnerability Database
CVE published
Apr 1, 2026 · VulDB

Source activity

Repeated readings are counted rather than listed.

1× Official description updated · Oct 13, 2026 – Oct 13, 2026

References

6 on the record

www.iperiusbackup.com/download-software-backup.aspx
patch, NIST National Vulnerability Database
vuldb.com/vuln/354639
vdb-entry, NIST National Vulnerability Database
github.com/VulnaraByte/iperius-backup-security-advisories/blob/main/poc/decrypt_
exploit, NIST National Vulnerability Database
github.com/VulnaraByte/iperius-backup-security-advisories
related, NIST National Vulnerability Database
vuldb.com/vuln/354639/cti
signature, permissions-required, NIST National Vulnerability Database
vuldb.com/submit/778602
third-party-advisory, NIST National Vulnerability Database

Elsewhere on this site

Enter Software
every CVE for this vendor

CWE-320
other pages naming this weakness

Related CVEs (same products)

Low CVE-2026-4823 Enter Software Iperius Backup NTLM2 information disclosure Mar 25, 2026
High CVE-2026-4824 Enter Software Iperius Backup Backup Job Configuration File privileges management Mar 25, 2026
High CVE-2026-4822 Enter Software Iperius Backup Backup Service temp file Mar 25, 2026

Not in any source we poll

Listed rather than left blank: an empty field and an unmeasured one look identical on screen, and only one is a reason to look elsewhere.

No fixed version, patch or mitigation documented.
No confirmed IOCs, IP addresses, domains, file hashes, or malware artifacts supplied.
No organization-specific asset inventory, compensating-control status, or patch deployment evidence supplied.
No exploit packet captures, log samples, or incident case IDs supplied.

Answered from this record

Text assembled only from the fields above — no additional claims.

What should defenders know first?

CVE-2026-5310 is "Enter Software Iperius Backup IperiusAccounts.ini hard-coded key", rated Low. It affects Iperius Backup (Enter Software); versions are in the scope table. It is not in CISA KEV, which does not rule out exploitation. CVSS 2.5 describes technical severity. EPSS 0.13% estimates the probability of exploitation in 30 days; neither replaces your asset context. First verify whether exposed or business-critical assets run the affected versions, apply vendor fixes or mitigations, and preserve logs for review.

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