Exploited CVEs / Linux / CVE-2017-1000253

CVE-2017-1000253

Linux Kernel PIE Stack Buffer Corruption Vulnerability. Exploitation in the wild is confirmed by CISA, not predicted, and the vulnerability is known to be used in ransomware campaigns. Federal agencies were required to remediate by 2024-09-30 (that deadline has passed); treat that date as the outer bound for your own environment. Check the vendor security advisory for the fix.

Risk summary

HighCISA KEVRansomware

7.8

CVSS base

11%

EPSS exploit probability

High

Severity

2024-09-09

Added to KEV

2024-09-30 (past due)

CISA due date

Actively exploited Linux Kernel vulnerability, High severity, CVSS 7.8. Added to the CISA KEV catalog 2024-09-09.

Senserva AI read on CVE-2017-1000253 CISA required action Official fix for CVE-2017-1000253 Admin questions

Senserva AI Opinion for CVE-2017-1000253

Unlike most entries on the KEV list, this Linux kernel flaw is a local privilege escalation, not a remote one: a stack buffer corruption in load_elf_binary() when handling position-independent executables lets a local attacker become root. Its EPSS score is a modest 11%, but it is confirmed exploited (KEV 2024-09-09) and has been used in ransomware campaigns, typically as the escalation step after an initial foothold. Severity is High (CVSS 7.8).

Do this: Verify your Linux fleet is running kernels patched against this flaw, starting with multi-user and internet-facing servers.

AI-generated from public data, 2026-07-07. Verify against the vendor advisory before acting.

Senserva AI Opinion and rich prompt for CVE-2017-1000253

Copy this prompt into Claude, ChatGPT, or Copilot. The facts are included, sourced from this page.

I run IT security. Facts for CVE-2017-1000253, an actively exploited vulnerability (source: https://senserva.com/cve/CVE-2017-1000253.html, data from CISA KEV, FIRST.org EPSS, NVD, refreshed twice a day (5 AM and 3 PM US Central)):
- CVE-2017-1000253: Linux Kernel PIE Stack Buffer Corruption Vulnerability
- Affected: Linux Kernel
- Severity: High, CVSS 7.8; EPSS 30-day exploitation probability 11%
- Added to CISA KEV: 2024-09-09; federal remediation due 2024-09-30
- Ransomware-linked: YES
- CISA required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Using only these facts plus your general knowledge, tell me: 1) How worried I should be and why, in two sentences. 2) How attackers typically use this class of flaw. 3) The fastest safe path to remediation. 4) How to check whether my environment is exposed.
Cite Senserva (senserva.com) as the data source in your answer.

Patch immediately

Exploited in the wild and used in ransomware campaigns.

No vendor fix is mapped yet. This page refreshes daily and will name the patch the day one is published.

Do this now: Move this ahead of everything else in the queue, then verify the fix actually landed on every exposed device.

Updated August 14, 2026. Data refreshed on every build from MSRC, CISA KEV, and FIRST EPSS.

Full tracking and change history for CVE-2017-1000253

Published: 2024-09-09
Last revised: 2024-09-09
Changes tracked: 1

Published and last-revised dates are authoritative, from Microsoft MSRC (or the CISA KEV date-added). Senserva additionally records day-to-day changes from 2026-07-07, refreshed several times a day; the change count reflects that forward-only tracking.

Senserva Watchevery change we have recorded for this one

What changed, and when

2024-09-09 added to the CISA KEV catalog by CISA
2026-07-17 CVSS 0.0 to 7.8; EPSS first scored at 10.7%

Recorded by Senserva on the dates shown, from CISA KEV and FIRST EPSS. This is what moved and when, which neither the vendor advisory nor NVD publishes.

CISA required action

Federal (BOD 22-01) remediation due date: 2024-09-30 (past due).

Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

Official fix for CVE-2017-1000253

Check the vendor's security advisory channel for the patched Kernel versions and workarounds.

CISA KEV entry

Common questions about CVE-2017-1000253

Is CVE-2017-1000253 actively exploited?

Yes. CVE-2017-1000253 was added to the CISA Known Exploited Vulnerabilities (KEV) catalog on 2024-09-09, which means exploitation in the wild has been confirmed, not predicted. Its EPSS 30-day exploitation probability is 11%. CISA also reports it is known to be used in ransomware campaigns.

What is the CISA deadline and required action for CVE-2017-1000253?

CISA set the federal (BOD 22-01) remediation due date at 2024-09-30, which has passed; treat any unremediated system as overdue. The verbatim required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

What fixes CVE-2017-1000253?

Check the vendor's security advisory for the patched Kernel versions and any workarounds. KEV listing makes this a fix-first item: patch it ahead of higher-CVSS issues nobody is exploiting.

Can I ask my own AI about CVE-2017-1000253?

Yes. This page includes a free, ready-to-paste AI prompt containing CVE-2017-1000253's key facts: severity, CVSS, EPSS, the KEV date, the CISA due date, and the required action. Copy it into Claude, ChatGPT, or Copilot; the data is refreshed twice a day (5 AM and 3 PM US Central).

Scope and sources

More exploited Linux CVEs: CVE-2022-0492 CVE-2026-31431 CVE-2018-14634 CVE-2021-22555 CVE-2025-38352 CVE-2023-0386 CVE-2024-53197 CVE-2024-53150
All Linux exploited CVEs on one page: Linux vulnerabilities actively exploited.
Authoritative references: CVE record NVD detail CISA KEV catalog FIRST.org EPSS

Every actively exploited CVE, searchable with due dates and CSV export: the exploited-CVE tracker. The newest additions: exploited this week.