Threats / Acronis / CVE-2023-45249
CVE-2023-45249
· EUVD no mirror located
· GCVE no mirror located
Verified 2026-08-04
Acronis Cyber Infrastructure (ACI) vulnerability
Acronis Cyber Infrastructure allows unauthenticated remote command execution via default credentials, enabling direct system compromise without authentication.
Verdict
Today item — known-exploited.
An unauthenticated attacker can execute arbitrary commands on affected Acronis Cyber Infrastructure systems by exploiting default passwords, leading to full system compromise and potential data exfiltration or destruction.
CISA KEV Yes · 2024-07-295EPSS 0.53255 (verify live)6CVSS 9.83CISA SSVC Exploitation: active · Automatable: yes · Impact: total4Exploit Weaponized · public exploit · Metasploit module · nuclei template11
01
Is it exploitable?
— the evidence, ranked above the scoreReported exploitation
2 independent public reports of in-the-wild exploitation are cataloged.Distinct reporting sources (vendor, incident response, government); open them for the underlying claims.
Exploited in the wild
Listed in the CISA Known Exploited Vulnerabilities catalog (added 2024-07-29).
Probability (EPSS)
EPSS 0.53255 — modeled likelihood of exploitation activity.EPSS is a daily-changing model output — open the source for today's value.
Severity / affected
CVSS 9.8 (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H) · Affected: Acronis, Cyber Infrastructure (ACI). Confirm exact fixed builds in the vendor advisory.CVSS — CNA-assigned (CVE.org), version 3.0, set at disclosure.
Weakness (CWE)
Mapped to CWE-1393 CWE-1393.CWE — CNA-assigned (CVE.org); the weakness class drives how the flaw is exploited.
CISA SSVC (triage disposition)
Exploitation: active · Automatable: yes · Technical Impact: totalCISA's own stakeholder-specific triage inputs, published in the CVE record (CISA Coordinator role). NOTE: this is CISA's three decision points; the final Act/Attend/Track decision also requires a Mission & Well-being input not published here, so no overall decision is asserted.
Currency of the record
CISA added this to its KEV catalog 5 days after the CVE record was published.KEV lag = CISA-KEV dateAdded − CVE.org datePublished; a floor on how long the known-exploited flaw sat in the public record before the federal catalog listed it. Severity/weakness here is CNA- or CISA-assigned (current at disclosure), independent of NVD's analysis backlog.
Public exploit available
Public exploit tooling is catalogued for this CVE (a functional/weaponized public exploit). Catalog entries: Metasploit module, nuclei template. We link the catalog page(s) only — no payload or code is hosted or restated here.Link, never host — the catalog page is the source; basicsecurity.net does not redistribute payloads.
WeaknessCWE-1393 · CWE-1393
02
Who’s exploiting it?
— attribution turns risk into urgencyAttribution not established
No confirmed (advisory-backed) threat-actor attribution is established for this record. Absence of a named actor is not absence of compromise — see Coverage & confidence.
03
Why it matters
— the attack path, told twice: adversary, then board1
Front door — unauthenticated access narrative 1
Attacker
I discover the service is accessible over the network with default credentials documented or easily guessable.
Business
The organization's infrastructure management layer is exposed to unauthorized access without requiring valid authentication.
2
Keys to the kingdom — privilege/identity takeover narrative 2
Attacker
I authenticate using default credentials and gain access to the command execution interface.
Business
Administrative functions become available to unauthenticated parties, bypassing access controls entirely.
3
Lateral reach — past segmentation narrative 3
Attacker
I execute arbitrary system commands with the privileges of the Acronis service account.
Business
Attackers can install malware, modify configurations, access sensitive data, or pivot to connected infrastructure.
04
What to do
— defensible action- Remediate per the vendor advisory — confirm the fixed build for your version and verify exposure.1
Say it to the boardA vulnerability with this evidence profile is a defensible budget line, not a backlog ticket — fund the change against the proof above.
05