CVE-2026-33922 — Path traversal in the Offline archives functionality of the local web interface in Arc before v2.7.0
A path traversal vulnerability was discovered in the Offline archives functionality of the local web interface due to insufficient validation of an input parameter. A local user with administrative credentials for the web interface could submit an archive name containing traversal sequences and delete arbitrary files reachable by the Arc process, which runs with administrative privileges on the host.
Who exploits it and how urgent it is
A 0–100 score combining confirmed exploitation, ransomware and APT use, public exploits, EPSS and severity.
How the score was calculated
- Technical severity (medium)+3
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.
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.
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 (Nozominetworks Arc).
- No fix documented in the sources: reduce exposure and monitor the vendor advisory.
- Search available logs for exploit probes matching the vulnerability class (file handling), errors and authentication anomalies.
Affected scope
Vendor, product and versions as the sources word them.
| Vendor | Product | Versions | Status | Source |
|---|---|---|---|---|
| Nozominetworks | Arc | < 2.7.0 | Vulnerable | CVE Program (cve.org) e CISA ADP |
Attack characteristics
The CVSS vector, decoded. It describes the attack, not your exposure to it.
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 |
|---|---|---|---|---|---|
| 6.8 | CVSS 4.0 | Medium | — | — | prodsec@nozominetworks.com via NIST National Vulnerability Database |
| 6.8 | CVSS 4.0 | Medium | — | — | Nozomi via CVE Program (cve.org) e CISA ADP |
| 6.0 | CVSS 3.1 | Medium | 0.8 | 5.2 | prodsec@nozominetworks.com via NIST National Vulnerability Database |
| 6.0 | CVSS 3.1 | Medium | — | — | Nozomi via CVE Program (cve.org) e CISA ADP |
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H (score shown at the top: prodsec@nozominetworks.com) Weakness MITRE
Weakness class according to MITRE’s CWE catalog.
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.
- Monitor file creation in web directories and paths with traversal sequences (../).
Timeline
What happened to this CVE, newest first.
- 2026
- Affected products added · nozomi networks/arc
- SSVC assessment updated
- Record published
- CVSS changed · 6.0
- Source status changed · → Awaiting Analysis
- Record created in this database
- CVE published
Source activity
Repeated readings are counted rather than listed.
- 1× Official description updated · Oct 15, 2026 – Oct 15, 2026
References
1 on the record
Elsewhere on this site
Related CVEs (same products)
- High CVE-2026-33389 Disabled and non-configurable certificate/host key validation in Smart Polling in Guardian/CMC before 26.3.0 and Arc before v2.7.0 Sep 8, 2026
- Medium CVE-2026-33921 Npcap driver installed without administrator-only access restriction on Windows in Arc before v2.7.0 Aug 11, 2026
- Medium CVE-2025-40896 Lack of TLS certificate validation when connecting Arc to a Guardian or CMC, in Arc before v2.2.0 Mar 4, 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 FIRST EPSS score.
- 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-2026-33922 is "Path traversal in the Offline archives functionality of the local web interface in Arc before v2.7.0", rated Medium. It affects Arc (Nozominetworks); versions are in the scope table. It is not in CISA KEV, which does not rule out exploitation. CVSS 6.0 describes technical severity. First verify whether exposed or business-critical assets run the affected versions, apply vendor fixes or mitigations, and preserve logs for review.
Comments
Moderated technical discussion. Read the community guidelines.
No comments yet.
Sign in or create an account to comment and suggest corrections.