How severe is CVE-2018-3938?

CVE-2018-3938 has a CVSS 3.x base score of 9.1, rated critical severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2018-3938 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-2018-3938?

CVE-2018-3938 primarily affects Sony Snc-eb600 Firmware. In total, 14 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2018-3938?

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-2018-3938 published?

CVE-2018-3938 was published on 2018-08-14 and last updated on 2026-06-17.

CVE-2018-3938

CVE-2018-3938 is a critical-severity vulnerability in Sony Snc-eb600 Firmware with a CVSS 3.x base score of 9.1. 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 9.1)
CVSS v2: 7.5
EPSS exploit prediction: 3% (87th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-787
Affected product: Sony Snc-eb600 Firmware
Published: 2018-08-14
Last modified: 2026-06-17

Description

An exploitable stack-based buffer overflow vulnerability exists in the 802dot1xclientcert.cgi functionality of Sony IPELA E Series Camera G5 firmware 1.87.00. A specially crafted POST can cause a stack-based buffer overflow, resulting in remote code execution. An attacker can send a malicious POST request to trigger this vulnerability.

Frequently asked questions

What is CVE-2018-3938?: An exploitable stack-based buffer overflow vulnerability exists in the 802dot1xclientcert.cgi functionality of Sony IPELA E Series Camera G5 firmware 1.87.00. A specially crafted POST can cause a stack-based buffer overflow, resulting in remote code execution. An attacker can send a malicious POST request to trigger this vulnerability.
How severe is CVE-2018-3938?: CVE-2018-3938 has a CVSS 3.x base score of 9.1, rated critical severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2018-3938 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-2018-3938?: CVE-2018-3938 primarily affects Sony Snc-eb600 Firmware. In total, 14 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2018-3938?: 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-2018-3938 published?: CVE-2018-3938 was published on 2018-08-14 and last updated on 2026-06-17.

References

https://www.talosintelligence.com/vulnerability_reports/TALOS-2018-0605

Affected products (14)

cpe:2.3:o:sony:snc-eb600_firmware:1.87.00:*:*:*:*:*:*:*
cpe:2.3:o:sony:snc-eb630_firmware:1.87.00:*:*:*:*:*:*:*
cpe:2.3:o:sony:snc-eb600b_firmware:1.87.00:*:*:*:*:*:*:*
cpe:2.3:o:sony:snc-eb630b_firmware:1.87.00:*:*:*:*:*:*:*
cpe:2.3:o:sony:snc-eb602r_firmware:1.87.00:*:*:*:*:*:*:*
cpe:2.3:o:sony:snc-eb632r_firmware:1.87.00:*:*:*:*:*:*:*
cpe:2.3:o:sony:snc-em600_firmware:1.87.00:*:*:*:*:*:*:*
cpe:2.3:o:sony:snc-em601_firmware:1.87.00:*:*:*:*:*:*:*
cpe:2.3:o:sony:snc-em630_firmware:1.87.00:*:*:*:*:*:*:*
cpe:2.3:o:sony:snc-em631_firmware:1.87.00:*:*:*:*:*:*:*
cpe:2.3:o:sony:snc-em602r_firmware:1.87.00:*:*:*:*:*:*:*
cpe:2.3:o:sony:snc-em632r_firmware:1.87.00:*:*:*:*:*:*:*
cpe:2.3:o:sony:snc-em602rc_firmware:1.87.00:*:*:*:*:*:*:*
cpe:2.3:o:sony:snc-em632rc_firmware:1.87.00:*:*:*:*:*:*:*

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