Medium severity · published May 21, 2026
CVE-2026-1816
OTP Bypass in TEİAŞ's Mobile Application
6.3
CVSS
0.2%
EPSS
No
On KEV
Description
Improper restriction of excessive authentication attempts vulnerability in Turkiye Electricity Transmission Corporation (TEİAŞ) Mobile Application allows Brute Force.
This issue affects Mobile Application: from 1.6.2 before 1.13.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
Required
Confidentiality
High
Integrity
Low
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 8% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
MA
Mobile Application · Turkiye Electricity Transmission Corporation (TEİAŞ)
1.6.2 before 1.13 · source: vendor
Affected product
MA
Mobile Application
Turkiye Electricity Transmission Corporation (TEİAŞ)
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-1816
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-1816
siberguvenlik.gov.tr
https://siberguvenlik.gov.tr/guvenlik-bildirimleri/detay/tr-26-0286
More from Mobile Application
5.7
CVE-2026-1815
Session Hijacking in TEİAŞ's Mobile Application