CVE-2017-1000253

HIGHNVD 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 — 5 sources updated this weekExploited in the wild
7.8
EchelonGraph verdictPatch nowTreat as an emergency — this is being exploited.
  • Actively exploited in the wild (CISA-KEV)
CISA-KEV: ExploitedEPSS: 11%CVSS: 7.8Exploit: NoneExposed: 0

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
9.0(high)
EPSS
95.3%
KEV
⚠ Exploited

Published

October 5, 2017

Last Modified

April 21, 2026

Advisory Details (10)

Auto-updated May 19, 2026
Patch available. Sources: redhat.
redhat Patch Available

Affected: Red Hat Enterprise Linux 6.2 Advanced Update Support.

https://access.redhat.com/errata/RHSA-2017:2800
redhat Patch Available

Affected: Red Hat Enterprise Linux 6.4 Advanced Update Support.

https://access.redhat.com/errata/RHSA-2017:2799
redhat Patch Available

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
redhat Patch Available

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
redhat Patch Available

Affected: Red Hat Enterprise Linux 6.7 Extended Update Support.

https://access.redhat.com/errata/RHSA-2017:2796
redhat Patch Available

Affected: Red Hat Enterprise Linux 6.

https://access.redhat.com/errata/RHSA-2017:2795
redhat Patch Available

Affected: Red Hat Enterprise Linux 7.2 Extended Update Support.

https://access.redhat.com/errata/RHSA-2017:2794
redhat Patch Available

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 / EcosystemFixed in / PatchReleasedSource
redhatkernel-0:2.6.18-423.el52017-09-26redhat
redhatkernel-0:3.10.0-327.59.3.el72017-09-26redhat
redhatkernel-0:3.10.0-514.32.3.el72017-09-26redhat
redhatkernel-0:2.6.18-348.34.2.el52017-09-26redhat
redhatkernel-0:2.6.32-696.10.3.el62017-09-26redhat
redhatkernel-0:2.6.32-358.84.1.el62017-09-26redhat
redhatkernel-0:2.6.32-220.76.1.el62017-09-26redhat
redhatkernel-0:2.6.32-431.85.1.el62017-09-26redhat
redhatkernel-0:2.6.32-504.63.3.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.

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 0× in last 7d / 0× 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.

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

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 ↗

Frequently asked(6)

What is CVE-2017-1000253?
CVE-2017-1000253 is a high 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 in the National Vulnerability Database on October 5, 2017, with the most recent update on April 21, 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 patching attention.
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.
Which products are affected by CVE-2017-1000253?
CVE-2017-1000253 affects Linux Kernel. The full affected-products list, including version ranges and fixed versions, is shown in the Affected Packages section of this page.
How do I remediate CVE-2017-1000253?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2017-1000253, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2017-1000253

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