Exploited vulnerability · CISA KEV

Is CVE-2017-1000253 exploited? Yes: in CISA KEV since 9 Sep 2024

Gociux · Linux Kernel · data: CISA KEV, CVE record, FIRST EPSS

Yes. CVE-2017-1000253, Linux Kernel PIE Stack Buffer Corruption Vulnerability , is being exploited in the wild. CISA added it to its Known Exploited Vulnerabilities catalog on 9 Sep 2024, 2532 days after it was published. It is known to be used in ransomware campaigns. It affects Linux Kernel. If you run it, CISA's required action is: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

exploitedYesCISA KEV · 9 Sep 2024

ransomwareKnownused in campaigns

EPSStop 5%very likely to be exploited

severity7.8CVSS 3.1 · high

US federal due30 Sep 2024BOD 22-01 deadline

What it is

Linux kernel contains a position-independent executable (PIE) stack buffer corruption vulnerability in load_elf_ binary() that allows a local attacker to escalate privileges.

Vendor	Linux (32 exploited CVEs in KEV)
Product	Kernel
Vulnerability	Linux Kernel PIE Stack Buffer Corruption Vulnerability
Weakness	CWE-119
Published	4 Oct 2017
Added to KEV	9 Sep 2024
Reported by (CNA)	mitre

What to do

Check whether you run it. Look for Kernel in your asset inventory, including appliances and cloud images. Stack check lists every exploited Linux CVE at once.
Apply the fix. Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
If you can't patch today, take the affected service off the internet or restrict who can reach it, and check its logs for signs of compromise since 4 Oct 2017.
Get told next time. Email alerts when CISA adds a CVE for Linux.

Other exploited CVEs in Kernel

CVE-2026-46300: Linux Kernel Missing Initialization of a Variable Vulnerability (28 Oct 2026)
CVE-2025-39964: Linux Kernel Race Condition Vulnerability (18 Sep 2026)
CVE-2026-53266: Linux Kernel Out-of-Bounds Write Vulnerability (18 Sep 2026)
CVE-2025-39682: Linux Kernel Improper Check for Unusual or Exceptional Conditions Vulnerability (18 Sep 2026)
CVE-2026-53362: Linux Kernel Unspecified Vulnerability (27 Aug 2026)
CVE-2022-0995: Linux Kernel Out-of-Bounds Write Vulnerability (26 Aug 2026)

References

nvd.nist.gov/vuln/detail/CVE-2017-1000253

Questions

Is CVE-2017-1000253 being exploited?

Yes. CISA added CVE-2017-1000253 to the Known Exploited Vulnerabilities catalog on 9 Sep 2024, which means there is reliable evidence of exploitation in the wild.

Is CVE-2017-1000253 used in ransomware attacks?

Yes, CISA lists it as known to be used in ransomware campaigns.

How do I fix CVE-2017-1000253?

Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable. Check Linux's advisory for the fixed versions, and if you can't patch quickly, restrict access to the affected Kernel and watch it for signs of compromise.

Sources: CISA KEV (exploitation, ransomware use, required action, due date), the CVE record (publication date, CVSS, CNA), NVD and FIRST EPSS (live score). More: all KEV additions in September 2024 · Linux scorecard · act-now radar.

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