CVE-2026-18753Network attack vector

HTTPS decryption and spoofing via static TLS key

Published Aug 4, 2026 · Updated Aug 4, 2026

Hard-coded key exposure in GeoVision GV-AS1620 2.07 allows remote attackers to decrypt HTTPS traffic and impersonate the controller. The Lighttpd TLS endpoint uses an RSA private key embedded unchanged in the firmware instead of generating a device-specific secret. Remote attackers who recover the embedded key can decrypt captured HTTPS sessions and spoof the controller; service interruption is not reported.

CVSS severity9.1
Critical
EPSS probability0.31%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Hard-coded key exposure in GeoVision GV-AS1620 2.07 allows remote attackers to decrypt HTTPS traffic and impersonate the controller. The Lighttpd TLS endpoint uses an RSA private key embedded unchanged in the firmware instead of generating a device-specific secret. Remote attackers who recover the embedded key can decrypt captured HTTPS sessions and spoof the controller; service interruption is not reported.

The record

CVE
CVE-2026-18753
Published
Aug 4, 2026
Updated
Aug 4, 2026
Vendor
GeoVision
Product
GV-AS1620
Classifications
CWE-321, CAPEC-633, T1557
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 4, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=V2.07

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

GeoVision · GV-AS1620version=V2.07

Published CVSS scores

9.1GeoVision Inc.CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-321Use of Hard-coded Cryptographic Key
CAPEC-633Token Impersonation
T1557Adversary-in-the-Middle

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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