CVE-2017-1000253

CRITICALNVD 7.89.0▲
EchelonGraph scoreHIGH confidence

Score elevated to 9.0 because this CVE is listed on the CISA Known Exploited Vulnerabilities catalog (added 2024-09-09), indicating real-world exploitation has been confirmed by US federal agencies. NVD baseline CVSS 7.8 retained for reference. Confidence: HIGH.

Triggered by: CISA KEV (actively exploited)
Sources: cisa_kev, epss, ghsa, nvd
Trending — 4 sources updated this weekExploited in the wild
9.0EG
EchelonGraph verdictPatch nowTreat as an emergency — this is being exploited.
  • Actively exploited in the wild (CISA-KEV)
CISA-KEV: ExploitedEPSS PROB: 11%CVSS: 7.8Exploit: cisa kev · ssvc active · kev ransomware · epss top5pct · public exploitExposed services: Not assessed

A fix is available — apply it.

Linux distributions that have not patched their long-term kernels with https://git.kernel.org/linus/a87938b2e246b81b4fb713edb371a9fa3c5c3c86 (committed on April 14, 2015). This kernel vulnerability was fixed in April 2015 by commit a87938b2e246b81b4fb713edb371a9fa3c5c3c86 (backported to Linux 3.10.77 in May 2015), but it was not recognized as a security threat. With CONFIG_ARCH_BINFMT_ELF_RANDOMIZE_PIE enabled, and a normal top-down address allocation strategy, load_elf_binary() will attempt to map a PIE binary into an address range immediately below mm->mmap_base. Unfortunately, load_elf_ binary() does not take account of the need to allocate sufficient space for the entire binary which means that, while the first PT_LOAD segment is mapped below mm->mmap_base, the subsequent PT_LOAD segment(s) end up being mapped above mm->mmap_base into the are that is supposed to be the "gap" between the stack and the binary.

CVSS v3
7.8
EG Score
9.0CRITICALhigh confidence
EG Risk
81
EG Risk 81/100CISA SSVC

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity90% × 45%
Exploitation100% × 40%
Automatability0% × 15%
CISA SSVC: Track at low, Attend at medium and Act at high mission impact.
Action: A fix is available. Apply it within your standard update timelines at low, sooner than that at medium and as soon as possible at high mission impact.
EPSS PROB
11%
EPSS %ILE
95th
KEV
⚠ Exploited

CISA SSVCTrack at low, Attend at medium and Act at high mission impact.

A fix is available. Apply it within your standard update timelines at low, sooner than that at medium and as soon as possible at high mission impact.

Exploitation active (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

October 5, 2017

Last Modified

June 17, 2026

Advisory Details (10)

Auto-updated May 19, 2026
Patch available. Sources: redhat.
redhatMentions a patch (unverified)

Affected: Red Hat Enterprise Linux 6.2 Advanced Update Support.

https://access.redhat.com/errata/RHSA-2017:2800
redhatMentions a patch (unverified)

Affected: Red Hat Enterprise Linux 6.4 Advanced Update Support.

https://access.redhat.com/errata/RHSA-2017:2799
redhatMentions a patch (unverified)

Affected: Red Hat Enterprise Linux 6.5 Advanced Update Support and Red Hat Enterprise Linux 6.5 Telco Extended Update Support.

https://access.redhat.com/errata/RHSA-2017:2798
redhatMentions a patch (unverified)

Affected: Red Hat Enterprise Linux 6.6 Advanced Update Support and Red Hat Enterprise Linux 6.6 Telco Extended Update Support.

https://access.redhat.com/errata/RHSA-2017:2797
redhatMentions a patch (unverified)

Affected: Red Hat Enterprise Linux 6.7 Extended Update Support.

https://access.redhat.com/errata/RHSA-2017:2796
redhatMentions a patch (unverified)

Affected: Red Hat Enterprise Linux 6.

https://access.redhat.com/errata/RHSA-2017:2795
redhatMentions a patch (unverified)

Affected: Red Hat Enterprise Linux 7.2 Extended Update Support.

https://access.redhat.com/errata/RHSA-2017:2794
redhatMentions a patch (unverified)

Affected: Red Hat Enterprise Linux 7.3 Extended Update Support.

https://access.redhat.com/errata/RHSA-2017:2793
generic
http://www.securitytracker.com/id/1039434
generic
http://www.securityfocus.com/bid/101010

Vendor Advisories for CVE-2017-1000253(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Patch Availability(11)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
redhatkernel-0:2.6.18-423.el52017-09-26redhat
redhatkernel-0:2.6.32-431.85.1.el62017-09-26redhat
redhatkernel-0:3.10.0-327.59.3.el72017-09-26redhat
redhatkernel-0:2.6.18-348.34.2.el52017-09-26redhat
redhatkernel-0:3.10.0-514.32.3.el72017-09-26redhat
redhatkernel-0:2.6.32-504.63.3.el62017-09-26redhat
redhatkernel-0:2.6.32-220.76.1.el62017-09-26redhat
redhatkernel-0:2.6.32-696.10.3.el62017-09-26redhat
redhatkernel-0:2.6.32-358.84.1.el62017-09-26redhat
redhatkernel-0:2.6.32-573.48.1.el62017-09-26redhat
redhatkernel-0:3.10.0-693.el72017-08-01redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(4 across 4 ecosystems)
Debian:11(1)
PackageVulnerable rangeFix by version rangeDependents
linux—
  • every version up to 4.0.2-1: fixed in 4.0.2-1
—
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
linux—
  • every version up to 4.0.2-1: fixed in 4.0.2-1
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
linux—
  • every version up to 4.0.2-1: fixed in 4.0.2-1
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
linux—
  • every version up to 4.0.2-1: fixed in 4.0.2-1
—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Additional Vendor Advisories

(10)

Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.

Data Freshness Timeline

(refreshed 102× in last 7d / 448× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 1,873 total refreshes for this CVE.

  1. 2026-10-06 06:24 UTCVendor advisory
  2. 2026-10-06 06:24 UTCGHSA enrichment
  3. 2026-10-06 02:36 UTCVendor advisory
  4. 2026-10-06 02:36 UTCGHSA enrichment
  5. 2026-10-05 22:48 UTCVendor advisory
  6. 2026-10-05 22:48 UTCGHSA enrichment
  7. 2026-10-05 19:00 UTCEG score recompute
  8. 2026-10-05 19:00 UTCVendor advisory
  9. 2026-10-05 19:00 UTCGHSA enrichment
  10. 2026-10-05 17:38 UTCEPSS rescore
  11. 2026-10-05 15:12 UTCVendor advisory
  12. 2026-10-05 15:12 UTCGHSA enrichment
  13. 2026-10-05 11:22 UTCVendor advisory
  14. 2026-10-05 11:21 UTCGHSA enrichment
  15. 2026-10-05 07:34 UTCVendor advisory
  16. 2026-10-05 07:34 UTCGHSA enrichment
  17. 2026-10-05 03:46 UTCVendor advisory
  18. 2026-10-05 03:46 UTCGHSA enrichment
  19. 2026-10-04 23:59 UTCEG score recompute
  20. 2026-10-04 23:59 UTCVendor advisory
  21. 2026-10-04 23:58 UTCGHSA enrichment
  22. 2026-10-04 23:17 UTCEPSS rescore
  23. 2026-10-04 20:11 UTCVendor advisory
  24. 2026-10-04 20:10 UTCGHSA enrichment
  25. 2026-10-04 16:21 UTCVendor advisory
Show 75 more
  1. 2026-10-04 16:21 UTCGHSA enrichment
  2. 2026-10-04 12:33 UTCVendor advisory
  3. 2026-10-04 12:33 UTCGHSA enrichment
  4. 2026-10-04 08:46 UTCVendor advisory
  5. 2026-10-04 08:46 UTCGHSA enrichment
  6. 2026-10-04 04:58 UTCVendor advisory
  7. 2026-10-04 04:58 UTCGHSA enrichment
  8. 2026-10-04 01:11 UTCVendor advisory
  9. 2026-10-04 01:11 UTCGHSA enrichment
  10. 2026-10-03 21:24 UTCVendor advisory
  11. 2026-10-03 21:24 UTCGHSA enrichment
  12. 2026-10-03 17:36 UTCEG score recompute
  13. 2026-10-03 17:36 UTCVendor advisory
  14. 2026-10-03 17:36 UTCGHSA enrichment
  15. 2026-10-03 14:21 UTCEPSS rescore
  16. 2026-10-03 14:21 UTCEPSS rescore
  17. 2026-10-03 13:49 UTCVendor advisory
  18. 2026-10-03 13:49 UTCGHSA enrichment
  19. 2026-10-03 09:58 UTCVendor advisory
  20. 2026-10-03 09:58 UTCGHSA enrichment
  21. 2026-10-03 06:09 UTCVendor advisory
  22. 2026-10-03 06:09 UTCGHSA enrichment
  23. 2026-10-03 02:21 UTCVendor advisory
  24. 2026-10-03 02:20 UTCGHSA enrichment
  25. 2026-10-02 22:32 UTCVendor advisory
  26. 2026-10-02 22:32 UTCGHSA enrichment
  27. 2026-10-02 18:44 UTCEG score recompute
  28. 2026-10-02 18:44 UTCVendor advisory
  29. 2026-10-02 18:44 UTCGHSA enrichment
  30. 2026-10-02 14:56 UTCVendor advisory
  31. 2026-10-02 14:56 UTCGHSA enrichment
  32. 2026-10-02 11:08 UTCVendor advisory
  33. 2026-10-02 11:08 UTCGHSA enrichment
  34. 2026-10-02 07:20 UTCVendor advisory
  35. 2026-10-02 07:20 UTCGHSA enrichment
  36. 2026-10-02 03:33 UTCVendor advisory
  37. 2026-10-02 03:33 UTCGHSA enrichment
  38. 2026-10-01 23:46 UTCVendor advisory
  39. 2026-10-01 23:45 UTCGHSA enrichment
  40. 2026-10-01 19:57 UTCEG score recompute
  41. 2026-10-01 19:57 UTCVendor advisory
  42. 2026-10-01 19:57 UTCGHSA enrichment
  43. 2026-10-01 16:09 UTCVendor advisory
  44. 2026-10-01 16:09 UTCGHSA enrichment
  45. 2026-10-01 12:22 UTCVendor advisory
  46. 2026-10-01 12:21 UTCGHSA enrichment
  47. 2026-10-01 08:33 UTCVendor advisory
  48. 2026-10-01 08:33 UTCGHSA enrichment
  49. 2026-10-01 04:45 UTCVendor advisory
  50. 2026-10-01 04:44 UTCGHSA enrichment
  51. 2026-10-01 00:53 UTCVendor advisory
  52. 2026-10-01 00:53 UTCGHSA enrichment
  53. 2026-09-30 21:05 UTCVendor advisory
  54. 2026-09-30 21:05 UTCGHSA enrichment
  55. 2026-09-30 17:17 UTCEG score recompute
  56. 2026-09-30 17:17 UTCVendor advisory
  57. 2026-09-30 17:17 UTCGHSA enrichment
  58. 2026-09-30 14:58 UTCEPSS rescore
  59. 2026-09-30 13:29 UTCVendor advisory
  60. 2026-09-30 13:29 UTCGHSA enrichment
  61. 2026-09-30 09:42 UTCVendor advisory
  62. 2026-09-30 09:42 UTCGHSA enrichment
  63. 2026-09-30 05:55 UTCVendor advisory
  64. 2026-09-30 05:55 UTCGHSA enrichment
  65. 2026-09-30 02:07 UTCVendor advisory
  66. 2026-09-30 02:07 UTCGHSA enrichment
  67. 2026-09-29 22:20 UTCVendor advisory
  68. 2026-09-29 22:19 UTCGHSA enrichment
  69. 2026-09-29 18:30 UTCEG score recompute
  70. 2026-09-29 18:30 UTCVendor advisory
  71. 2026-09-29 18:30 UTCGHSA enrichment
  72. 2026-09-29 14:42 UTCVendor advisory
  73. 2026-09-29 14:42 UTCGHSA enrichment
  74. 2026-09-29 10:54 UTCVendor advisory
  75. 2026-09-29 10:54 UTCGHSA enrichment

Publicly available exploits

(3 references)

Working exploit code is in the public domain (2 GitHub PoCs) (1 Exploit-DB entry). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • GitHub PoCsxlmnwb/CVE-2017-1000253
    First seen Oct 16, 2022

    Linux Kernel 3.10.0-514.21.2.el7.x86_64 / 3.10.0-514.26.1.el7.x86_64 (CentOS 7) - SUID Position Independent Executable 'PIE' Local Privilege Escalation

    Open source ↗
  • GitHub PoCRicterZ/PIE-Stack-Clash-CVE-2017-1000253
    First seen Jun 18, 2018

    Demo-ing CVE-2017-1000253 in a container

    Open source ↗
  • Exploit-DBEDB-42887
    First seen Sep 26, 2017

    Linux Kernel 3.10.0-514.21.2.el7.x86_64 / 3.10.0-514.26.1.el7.x86_64 (CentOS 7) - SUID Position Independent Executable 'PIE' Local Privilege Escalation

    Open source ↗

Related CVEs(same vendor + same CWE)

Frequently asked(6)

What is CVE-2017-1000253?
CVE-2017-1000253 is a critical vulnerability published on October 5, 2017. Linux distributions that have not patched their long-term kernels with https://git.kernel.org/linus/a87938b2e246b81b4fb713edb371a9fa3c5c3c86 (committed on April 14, 2015). This kernel vulnerability was fixed in April 2015 by commit a87938b2e246b81b4fb713edb371a9fa3c5c3c86 (backported to Linux…
When was CVE-2017-1000253 disclosed?
CVE-2017-1000253 was first published on October 5, 2017, with the most recent update on June 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2017-1000253 actively exploited?
Yes. CISA added CVE-2017-1000253 to the Known Exploited Vulnerabilities catalog on September 9, 2024, affecting Linux Kernel. KEV listing indicates confirmed exploitation in the wild; this CVE warrants immediate attention. A fix is available. Apply it.
What is the CVSS score of CVE-2017-1000253?
CVE-2017-1000253 has a CVSS v3 base score of 7.8 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 9.0 (CRITICAL).
Which products are affected by CVE-2017-1000253?
CVE-2017-1000253 affects Linux Kernel. The affected packages EchelonGraph has on record, with version ranges, are listed in the Affected Packages section of this page.
How do I remediate CVE-2017-1000253?
A fix for CVE-2017-1000253 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2017-1000253 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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