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CVE-2019-16736

29
FAUCET Score

CVE-2019-16736 is a critical stack-based buffer overflow vulnerability in the libcommon.so library of Petwant PF-103 firmware 4.22.2.42 and Petalk AI 3.2.2.30, also affecting Skymee versions. This flaw allows unauthenticated remote attackers to achieve denial of service or execute arbitrary code with root privileges due to its network-based attack vector and low complexity. Despite its critical CVSS score of 9.8, there is no evidence of active exploitation, publicly available exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
3.2.2.30CPE matchmatch criteria
cpe:2.3:o:skymee:petalk_ai_firmware:3.2.2.30:*:*:*:*:*:*:*
4.22.2.42CPE matchmatch criteria
cpe:2.3:o:petwant:pf-103_firmware:4.22.2.42:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
3.39%
Probability of exploitation in next 30 days
EPSS Percentile
87.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0339 is in the 80th percentile among its peer group of 36,833 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

blog.securityevaluators.com / remotely-exploiting-iot-pet-feeders-21013562aea3
ExploitThird Party Advisory