CVE-2021-34170: Bandai Namco FromSoftware Dark Souls III allows remote attackers to execute arbitrary code.

This week

CRITICAL 9.8REMOTEMITIGATE

CVE-2021-34170 is a critical-severity flaw (CVSS 9.8) affecting dark souls iii. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Bandai Namco FromSoftware Dark Souls III allows remote attackers to execute arbitrary code.

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	2.8% (top 13%)
CISA exploited list	No
Published	2021-06-15
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: fromsoftware

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

Am I affected?

Timeline

2021-06-15 20:15 UTCPublished CVE record published
2026-06-17 03:55 UTCUpdated Record last modified

fromsoftware dark souls iii 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 dark-souls-iii || rpm -q dark-souls-iii || dark-souls-iii --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-2021-34170?

dark souls iii: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2021-34170 being exploited?

CVE-2021-34170 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-2021-34170 affect?

CVE-2021-34170 affects dark souls iii. Severity is critical (CVSS 9.8). Bandai Namco FromSoftware Dark Souls III allows remote attackers to execute arbitrary code.

How urgent is CVE-2021-34170?

Priority 66/100. Critical severity; Public exploit reference; Remotely exploitable, no login, no user action

Related CVEs

CVE-2022-24126 CRITICAL 9.8 UPGRADE A buffer overflow in the NRSessionSearchResult parser in Bandai Namco FromSoftware Dark Souls III through 2022
CVE-2022-24125 HIGH 8.8 UPGRADE The matchmaking servers of Bandai Namco FromSoftware Dark Souls III through 2022-03-19 allow remote attackers

References

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