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 — 5 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: 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)
EG Risk
81(Attend)
EG Risk 81/100SSVC: Attend

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%
Action: Remediate soon — notable exploitation risk.
EPSS PROB
11%
EPSS %ILE
95%
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.

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 69× in last 7d / 404× 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 824 total refreshes for this CVE.

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

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 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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