CVE-2018-12671: An attacker with remote access to the SV3C HD Camera (L-SERIES V2.3.4.2103-S50-NTD-B20170508B and V2.3.4.2103-

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CRITICAL 9.8REMOTEMITIGATE

CVE-2018-12671 is a critical-severity flaw (CVSS 9.8) affecting h.264 poe ip camera firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

An attacker with remote access to the SV3C HD Camera (L-SERIES V2.3.4.2103-S50-NTD-B20170508B and V2.3.4.2103-S50-NTD-B20170823B) web interface can disclose information about the camera including all password sets set within the camera. This information can then be used to gain access to the web interface.

Why this priority

Critical severity
Public exploit reference
Remotely exploitable, no login, no user action

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	1.3% (top 30%)
CISA exploited list	No
Weakness	CWE-200
Published	2018-10-19
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: sv3c

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2018-10-19 22:29 UTCPublished CVE record published
2026-06-17 01:38 UTCUpdated Record last modified

sv3c h.264 poe ip camera firmware MITIGATE

Affected: v2.3.4.2103-s50-ntd-b20170508b · v2.3.4.2103-s50-ntd-b20170823b

Fixed in: no fixed release known

Safe to downgrade to: a release before v2.3.4.2103-s50-ntd-b20170508b

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2018-12671?

h.264 poe ip camera firmware: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2018-12671 being exploited?

CVE-2018-12671 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2018-12671 affect?

CVE-2018-12671 affects h.264 poe ip camera firmware. Severity is critical (CVSS 9.8). An attacker with remote access to the SV3C HD Camera (L-SERIES V2.3.4.2103-S50-NTD-B20170508B and V2.3.4.2103-S50-NTD-B20170823B) web interface can disclose information about the camera including all password sets set within the camera. Thi

How urgent is CVE-2018-12671?

Priority 62/100. Critical severity; Public exploit reference; Remotely exploitable, no login, no user action

Related CVEs

CVE-2018-12675 MEDIUM 6.1 MITIGATE The SV3C HD Camera (L-SERIES V2.3.4.2103-S50-NTD-B20170508B and V2.3.4.2103-S50-NTD-B20170823B) does not perfo
CVE-2018-12674 MEDIUM 5.7 MITIGATE The SV3C HD Camera (L-SERIES V2.3.4.2103-S50-NTD-B20170508B and V2.3.4.2103-S50-NTD-B20170823B) stores the use
CVE-2018-12673 HIGH 7.5 MITIGATE An attacker with remote access to the SV3C HD Camera (L-SERIES V2.3.4.2103-S50-NTD-B20170508B and V2.3.4.2103-
CVE-2018-12672 MEDIUM 5.4 MITIGATE The SV3C HD Camera (L-SERIES V2.3.4.2103-S50-NTD-B20170508B) does not perform proper validation on user-suppli
CVE-2018-12670 CRITICAL 9.8 MITIGATE SV3C L-SERIES HD CAMERA V2.3.4.2103-S50-NTD-B20170508B and V2.3.4.2103-S50-NTD-B20170823B devices allow OS Com

References

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