How severe is CVE-2019-16735?

CVE-2019-16735 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2019-16735 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (87th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-16735?

CVE-2019-16735 primarily affects Skymee Petalk Ai Firmware. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2019-16735?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2019-16735 published?

CVE-2019-16735 was published on 2019-12-13 and last updated on 2026-06-17.

CVE-2019-16735

CVE-2019-16735 is a critical-severity vulnerability in Skymee Petalk Ai Firmware with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-787.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 10.0
EPSS exploit prediction: 3% (87th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-787
Affected product: Skymee Petalk Ai Firmware
Published: 2019-12-13
Last modified: 2026-06-17

Description

A stack-based buffer overflow in processCommandUploadLog in libcommon.so in Petwant PF-103 firmware 4.22.2.42 and Petalk AI 3.2.2.30 allows remote attackers to cause denial of service or run arbitrary code as the root user.

Frequently asked questions

What is CVE-2019-16735?: A stack-based buffer overflow in processCommandUploadLog in libcommon.so in Petwant PF-103 firmware 4.22.2.42 and Petalk AI 3.2.2.30 allows remote attackers to cause denial of service or run arbitrary code as the root user.
How severe is CVE-2019-16735?: CVE-2019-16735 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2019-16735 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (87th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-16735?: CVE-2019-16735 primarily affects Skymee Petalk Ai Firmware. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2019-16735?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2019-16735 published?: CVE-2019-16735 was published on 2019-12-13 and last updated on 2026-06-17.

References

https://blog.securityevaluators.com/remotely-exploiting-iot-pet-feeders-21013562aea3

Affected products (2)

cpe:2.3:o:skymee:petalk_ai_firmware:3.2.2.30:*:*:*:*:*:*:*
cpe:2.3:o:petwant:pf-103_firmware:4.22.2.42:*:*:*:*:*:*:*

More vulnerabilities in Skymee Petalk Ai Firmware

CVE-2019-17364 — Critical (CVSS 9.8): The processCommandUploadLog() function of libcommon.so in Petwant PF-103 firmware 4.22.2.42 and Petalk AI 3.2.2.30…
CVE-2019-16737 — Critical (CVSS 9.8): The processCommandSetMac() function of libcommon.so in Petwant PF-103 firmware 4.22.2.42 and Petalk AI 3.2.2.30 allows…
CVE-2019-16736 — Critical (CVSS 9.8): A stack-based buffer overflow in processCommandUploadSnapshot in libcommon.so in Petwant PF-103 firmware 4.22.2.42 and…
CVE-2019-16734 — Critical (CVSS 9.8): Use of default credentials for the TELNET server in Petwant PF-103 firmware 4.3.2.50 and Petalk AI 3.2.2.30 allows…
CVE-2019-16733 — Critical (CVSS 9.8): processCommandSetUid() in libcommon.so in Petwant PF-103 firmware 4.22.2.42 and Petalk AI 3.2.2.30 allows remote…
CVE-2019-16730 — Critical (CVSS 9.8): processCommandUpgrade() in libcommon.so in Petwant PF-103 firmware 4.22.2.42 and Petalk AI 3.2.2.30 allows remote…

All CVEs affecting Skymee Petalk Ai Firmware →

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