How severe is CVE-2013-4982?

CVE-2013-4982 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-2013-4982 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 13% (96th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2013-4982?

CVE-2013-4982 affects Avtech Avn801 Dvr Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2013-4982?

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-2013-4982 published?

CVE-2013-4982 was published on 2019-12-27 and last updated on 2026-06-16.

CVE-2013-4982

CVE-2013-4982 is a critical-severity vulnerability in Avtech Avn801 Dvr Firmware with a CVSS 3.x base score of 9.8. Its EPSS exploit-prediction score of 13% places it in the 96th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-287.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 13% (96th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-287
Affected product: Avtech Avn801 Dvr Firmware
Published: 2019-12-27
Last modified: 2026-06-16

Description

AVTECH AVN801 DVR has a security bypass via the administration login captcha

Frequently asked questions

What is CVE-2013-4982?: AVTECH AVN801 DVR has a security bypass via the administration login captcha
How severe is CVE-2013-4982?: CVE-2013-4982 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-2013-4982 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 13% (96th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2013-4982?: CVE-2013-4982 affects Avtech Avn801 Dvr Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2013-4982?: 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-2013-4982 published?: CVE-2013-4982 was published on 2019-12-27 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:o:avtech:avn801_dvr_firmware:1017-1003-1009-1003:*:*:*:*:*:*:*

More vulnerabilities in Avtech Avn801 Dvr Firmware

CVE-2013-4981 — Critical (CVSS 9.0): Buffer overflow in cgi-bin/user/Config.cgi in AVTECH AVN801 DVR with firmware 1017-1003-1009-1003 and earlier, and…
CVE-2013-4980 — Critical (CVSS 9.0): Buffer overflow in the RTSP Packet Handler in AVTECH AVN801 DVR with firmware 1017-1003-1009-1003 and earlier, and…

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Other CWE-287 (Improper Authentication) vulnerabilities

CVE-2026-45480 — Critical (CVSS 10.0): Improper authentication in Azure Active Directory allows an unauthorized attacker to elevate privileges over a network.
CVE-2026-46389 — Critical (CVSS 10.0): UDS Identity Config builds the Keycloak configuration image (realm, plugins, theme, truststore, JARs) consumed by UDS…
CVE-2026-10611 — Critical (CVSS 10.0): An authentication bypass vulnerability exists in MISP when LDAP mixed authentication is enabled with OTP enforcement.…
CVE-2026-47280 — Critical (CVSS 10.0): Improper authentication in Azure Resource Manager (ARM) allows an unauthorized attacker to elevate privileges over a…
CVE-2026-42822 — Critical (CVSS 10.0): Improper authentication in Azure Local Disconnected Operations allows an unauthorized attacker to elevate privileges…
CVE-2026-20182 — Critical (CVSS 10.0): May 2026: This security advisory provides the details and fix information for a vulnerability that was discovered and…

Browse all CWE-287 (Improper Authentication) vulnerabilities →