CVE-2021-28171

Q: How do I fix CVE-2021-28171?

Upgrade deltaflow to 7.7 or later.

Q: Is CVE-2021-28171 being actively exploited?

Not that we know of. CVE-2021-28171 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 1.2% is the estimated probability that it will be exploited in the next 30 days. That is higher than 65% of all scored CVEs.

Q: How severe is CVE-2021-28171?

CVE-2021-28171 has a CVSS v3 base score of 9.8, rated critical. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.

Q: What does CVE-2021-28171 affect?

Published advisories record a fix for deltaflow (NVD). Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.

CRITICAL

9.8

CVSS v3

NVD

Description

The Vangene deltaFlow E-platform does not take properly protective measures. Attackers can obtain privileged permissions remotely by tampering with users’ data in the Cookie.

CWE-522 CWE-565

How to fix

Remediation Available

deltaflowNVD

Affected:>= 4.0, < 7.7Fixed in:7.7CVE-2021-28171derived from NVD

TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

1.18%probability of exploitation in 30 days

65thpercentile

Moderate risk: more likely to be exploited than 65% of all known CVEs.

References

Third-Party Advisory2

Related Vulnerabilities

Other CWE-522 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2019-17662	Critical	9.8	97%	-	-
CVE-2020-29583	Critical	9.8	90%	KEV	-
CVE-2021-30116	Critical	10.0	86%	KEV + Ransom	Fix
CVE-2024-44000	Critical	9.8	82%	-	Fix
CVE-2018-9160	Critical	9.8	76%	-	-
CVE-2017-9248	Critical	9.8	75%	KEV	Fix

Common questions

How do I fix CVE-2021-28171?

Upgrade deltaflow to 7.7 or later.

Is CVE-2021-28171 being actively exploited?

Not that we know of. CVE-2021-28171 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 1.2% is the estimated probability that it will be exploited in the next 30 days. That is higher than 65% of all scored CVEs.

How severe is CVE-2021-28171?

CVE-2021-28171 has a CVSS v3 base score of 9.8, rated critical. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.

What does CVE-2021-28171 affect?

Published advisories record a fix for deltaflow (NVD). Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.

Embed a live status badge for CVE-2021-28171

Markdown

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.