VulnerabilityPublished 17 Feb 2026Updated 6 Mar 2026

CVE-2026-22762: Dell Avamar Server · Path Traversal

Affects Dell Avamar ServerSource CVE Database V5

Not known to be exploited · CVSS 6.5 Medium : upgrade to 19.10 SP1 with CHF 338912 or later when convenient.

Data as of 26 Oct 2026, 14:05 UTC

CVSS 3.1 base score

6.5Medium

How severe the flaw is on the 0–10 CVSS scale.

EPSS: 0.3% chance of exploitation in 30 days – higher than 31% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch: Available – fixed in 19.10 SP1 with CHF 338912 or later, 2.7.9 with AV CHF 338912

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H

Attack Vector: Network
Attack Complexity: Low
Privileges Required: High
User Interaction: None
Scope: Unchanged
Confidentiality: None
Integrity: High
Availability: High

Bold values are the worst case: easiest to exploit or largest impact.

Attack Vector: Network: The vulnerable component is bound to the network stack and the set of possible attackers extends beyond the other options listed, up to and including the entire Internet. Such a vulnerability is often termed 'remotely exploitable' and can be thought of as an attack being exploitable at the protocol level one or more network hops away (e.g., across one or more routers).
Attack Complexity: Low: Specialized access conditions or extenuating circumstances do not exist. An attacker can expect repeatable success against the vulnerable component.
Privileges Required: High: The attacker is authorized with (i.e., requires) privileges that provide significant (e.g., administrative) control over the vulnerable component that could affect component-wide settings and files.
User Interaction: None: The vulnerable system can be exploited without any interaction from any user.
Scope: Unchanged: An exploited vulnerability can only affect resources managed by the same security authority. In this case, the vulnerable component and the impacted component are either the same, or both are managed by the same security authority.
Confidentiality: None: There is no loss of confidentiality within the impacted component.
Integrity: High: There is a total loss of integrity, or a complete loss of protection. For example, the attacker is able to modify any/all files protected by the impacted component. Alternatively, only some files can be modified, but malicious modification would present a direct, serious consequence to the impacted component.
Availability: High: There is total loss of availability, resulting in the attacker being able to fully deny access to resources in the impacted component; this loss is either sustained (while the attacker continues to deliver the attack) or persistent (the condition persists even after the attack has completed). Alternatively, the attacker has the ability to deny some availability, but the loss of availability presents a direct, serious consequence to the impacted component (e.g., the attacker cannot disrupt existing connections, but can prevent new connections; the attacker can repeatedly exploit a vulnerability that, in each instance of a successful attack, leaks a only small amount of memory, but after repeated exploitation causes a service to become completely unavailable).

Definitions: FIRST CVSS v3.1 specification.

Exploitation evidence

Disclosed: evidence found.
CVE published 17 Feb 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponised: Public exploit code exists in Metasploit or Exploit-DB, or CISA SSVC or the CVSS exploit maturity reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

What to do

Upgrade Avamar Server and Avamar Virtual Edition to 19.10 SP1 with CHF 338912 or later; PowerProtect DP Series Appliance (IDPA) to 2.7.9 with AV CHF 338912.

Affected software

Product	Affected	Fixed in
DellAvamar Server	Affected ≥ 19.9 through 19.10 SP1, < 19.10 SP1 with CHF 338912 or later	Fixed in 19.10 SP1 with CHF 338912 or later
DellAvamar Virtual Edition	Affected ≥ 19.9 through 19.10 SP1, < 19.10 SP1 with CHF 338912 or later	Fixed in 19.10 SP1 with CHF 338912 or later
DellPowerProtect DP Series Appliance (IDPA)	Affected ≥ N/A, < 2.7.9 with AV CHF 338912	Fixed in 2.7.9 with AV CHF 338912

AI-suggested

To mitigate CVE-2026-22762, organizations should implement the following specific measures: 1) Restrict remote access to Dell Avamar Server management interfaces using network segmentation, VPNs, or firewall rules to limit exposure to trusted administrators only. 2) Enforce strict access controls and monitor administrative accounts to prevent privilege escalation or unauthorized access. 3) Implement file integrity monitoring on Avamar server directories to detect unauthorized file deletions or modifications promptly. 4) Regularly audit system and application logs for suspicious activity related to file operations or path traversal attempts. 6) Consider deploying application-layer protections such as web application firewalls (WAFs) that can detect and block path traversal patterns if applicable. 7) Maintain comprehensive backups of the Avamar server configuration and data outside the affected environment to enable recovery if exploitation occurs. 8) Conduct security awareness training for administrators to recognize and respond to potential exploitation attempts. These targeted steps go beyond generic advice by focusing on access restriction, monitoring, and rapid detection tailored to the nature of this vulnerability.

Description

Dell Avamar Server and Avamar Virtual Edition, versions prior to 19.10 SP1 with CHF338912, contain an Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') vulnerability in the Security. A high privileged attacker with remote access could potentially exploit this vulnerability, leading to arbitrary file delete.

Impact

The primary impact of CVE-2026-22762 is on the integrity and availability of systems running Dell Avamar Server and Avamar Virtual Edition. Successful exploitation allows a high-privileged attacker to delete arbitrary files, which could include critical backup data, configuration files, or system binaries. This can lead to data loss, disruption of backup and recovery processes, and potential downtime for organizations relying on Avamar for data protection. Since confidentiality is not affected, the risk is focused on operational disruption and data integrity compromise. Organizations with large-scale backup infrastructures could face significant recovery challenges, increased operational costs, and potential compliance issues if backups are corrupted or lost. The requirement for high privileges limits exploitation to insiders or attackers who have already compromised administrative accounts, but remote exploitation capability increases the attack surface. The absence of known exploits reduces immediate risk but does not eliminate the threat, especially in targeted attacks or insider threat scenarios.

CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') (opens in a new tab)
Base weaknessLikelihood of exploit: HighCWE Top 25 (2025): #6OWASP Top 10 A01:2025: Broken Access Control (opens in a new tab)
The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.
Implementation · Input Validation
Assume all input is malicious. Use an "accept known good" input validation strategy, i.e., use a list of acceptable inputs that strictly conform to specifications. Reject any input that does not strictly conform to specifications, or transform it into something that does.
Architecture and Design
For any security checks that are performed on the client side, ensure that these checks are duplicated on the server side, in order to avoid CWE-602. Attackers can bypass the client-side checks by modifying values after the checks have been performed, or by changing the client to remove the client-side checks…
Implementation · Input Validation
Inputs should be decoded and canonicalized to the application's current internal representation before being validated (CWE-180). Make sure that the application does not decode the same input twice (CWE-174).
OWASP Cheat Sheets
Authorization (opens in a new tab)
OWASP ASVS 4.0.3
V12.3.1 (opens in a new tab)
Attack patterns
Path Traversal (opens in a new tab)
Using Slashes and URL Encoding Combined to Bypass Validation Logic (opens in a new tab)
Manipulating Web Input to File System Calls (opens in a new tab)
Using Escaped Slashes in Alternate Encoding (opens in a new tab)
Using Slashes in Alternate Encoding (opens in a new tab)
From MITRE CWE, MITRE CAPEC and OWASP (Top 10, OpenCRE).

References

dell.com/support/kbdoc/en-us/000425796/dsa-2026-053-security-update-for-dell-avamar-server-and-dell-avamar-virtual-edition-improper-limitation-of-a-pathname-to-a-restricted-directory-path-traversal-vulnerability (opens in a new tab)

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Exploitation evidence

What to do

Affected software

Description

AI analysisMachine-generated, updated 6 Mar 2026, 20:42 UTC

WeaknessesCWE-22

Technical details

References

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