Critical severity · published Apr 24, 2026
CVE-2026-1949
Incorrect calculation of buffer size on the stack in AS320T
9.8
CVSS
0.6%
EPSS
No
On KEV
Description
Delta Electronics AS320T has incorrect calculation of the buffer size on the stack in the GET/PUT request handler of the web service.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.6% · higher than 49% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AS
AS320T · DeltaWW
through 1.14 · source: vendor
AF
As320t Firmware · Deltaww
before 1.16 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-1949
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-1949
Vendor Advisory
https://filecenter.deltaww.com/news/download/doc/Delta-PCSA-2026-00006_AS320T%20Multiple%20vulnerabilities%20(CVE-2026-1949,%201950,%201951,%201952).pdf
More from AS320T
9.8
CVE-2026-1951
No checking of the length of the buffer with the directory name in AS320T
9.8
CVE-2026-1950
No checking of the length of the buffer with the file name in AS320T
7.5
CVE-2026-1952
Denial of service via the undocumented subfunction in AS320T