CVE-2021-44162: Chain Sea ai chatbot system’s specific file download function has path traversal vulnerability

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HIGH 7.5REMOTEMITIGATE

CVE-2021-44162 is a high-severity flaw (CVSS 7.5) affecting qb smart service robot. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Chain Sea ai chatbot system’s specific file download function has path traversal vulnerability. The function has improper filtering of special characters in URL parameters, which allows a remote attacker to download arbitrary system files without authentication.

Why this priority

High severity
Remotely exploitable, no login, no user action

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

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	1.7% (top 22%)
CISA exploited list	No
Weakness	CWE-22
Published	2021-12-20
Last modified	2026-06-17

Publisher (CNA): TWCERT/CC · Vendor: chinasea

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

Am I affected?

Timeline

2021-12-20 03:15 UTCPublished CVE record published
2026-06-17 04:11 UTCUpdated Record last modified

chinasea qb smart service robot MITIGATE

Affected: all versions

Fixed in: no fixed release known

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy qb-smart-service-robot || rpm -q qb-smart-service-robot || qb-smart-service-robot --version

No fixed or unaffected release known

Apply the vendor mitigation from the advisory, disable the affected feature, or restrict network access.

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-2021-44162?

qb smart service robot: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2021-44162 being exploited?

CVE-2021-44162 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-2021-44162 affect?

CVE-2021-44162 affects qb smart service robot. Severity is high (CVSS 7.5). Chain Sea ai chatbot system’s specific file download function has path traversal vulnerability. The function has improper filtering of special characters in URL parameters, which allows a remote attacker to download arbitrary system files w

How urgent is CVE-2021-44162?

Priority 51/100. High severity; Remotely exploitable, no login, no user action

Related CVEs

CVE-2021-44164 CRITICAL 9.8 MITIGATE Chain Sea ai chatbot system’s file upload function has insufficient filtering for special characters in URLs,
CVE-2021-44163 MEDIUM 6.1 MITIGATE Chain Sea ai chatbot backend has improper filtering of special characters in URL parameters, which allows a re

References

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