CVE-2026-87931: Pavlok Behavioral Conditioning Wearable · Buffer Overflow
Affects Behavioral Technology Group Pavlok Behavioral Conditioning WearableSource GCVE Database
Not known to be exploited · CVSS 9.4 Critical.
Data as of 10/25/2026, 16:58:58 UTC
- EPSS
- 0.6% chance of exploitation in 30 days – higher than 48% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:PExploitation evidence
Disclosed: evidence found.
CVE published 9 Sep 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 wild: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq 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 2026-10-25.
What to do
Description
CVE-2026-87931 is a critical buffer overflow vulnerability in the Behavioral Technology Group Pavlok Behavioral Conditioning Wearable, specifically in an unknown function of the Apple Notification Center Service Event Handler component. The vulnerability affects versions up to and including 20260707. Exploitation requires local network access and no user interaction or privileges are needed. The vendor has not responded to the disclosure, and no patch or remediation is currently available.
Impact
Successful exploitation can lead to a buffer overflow, which may allow an attacker to execute arbitrary code or cause denial of service on the affected device. Given the high CVSS score and vector, the impact includes high confidentiality, integrity, and availability consequences. The attack requires local network access but no privileges or user interaction.
Summary
This vulnerability is a buffer overflow in the Pavlok Behavioral Conditioning Wearable device's Apple Notification Center Service Event Handler component. It allows an attacker on the local network to cause a buffer overflow without requiring privileges or user interaction. The vulnerability is identified as CVE-2026-87931 with a CVSS 3.1 base score of 9.4, indicating critical severity. The vendor was contacted but did not provide any response or patch information. No known exploits are reported in the wild.
Weaknesses
- CWE-119Improper Restriction of Operations within the Bounds of a Memory Buffer (opens in a new tab)
Class weaknessLikelihood of exploit: High
The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.
MITRE discourages mapping vulnerabilities to this broad entry; the root cause is usually a more specific weakness.
- CWE-120Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') (opens in a new tab)
Base weaknessLikelihood of exploit: HighCWE Top 25 (2025): #11
The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer.
References
- nvd.nist.gov/vuln/detail/CVE-2026-87931 (opens in a new tab)
- ab3j.radio/Pavlok.pdf (opens in a new tab)
- doi.org/10.13140/RG.2.2.35058.88009 (opens in a new tab)
- vuldb.com/cve/CVE-2026-87931 (opens in a new tab)
- vuldb.com/submit/881885 (opens in a new tab)
- vuldb.com/vuln/401814 (opens in a new tab)
- vuldb.com/vuln/401814/cti (opens in a new tab)