IBM i PTF Guide, Volume 28, Number 38
November 2, 2026 Doug Bidwell
Welcome to this week, where the IBM i platform has two issues you need to be aware of as well as a security bulletin. Yup, we said “a” there, meaning only one, meaning it looks like people were out trick or treating instead of bug hunting. Which is fine.
The first issue is related to Access Client Services. IBM has put out a note that warns: “Versions 1.1.9.1 through 1.1.9.16 are vulnerable to memory exhaustion via a malicious SFTP server sending unsolicited replies. The SFTP client (Apache MINA SSHD) did not verify that incoming replies corresponded to previously sent requests yet continued to store them.” You can read more about it at this link. It looks like IBM is recommending a move to ACS Version: 1.1.9.17.
The second issue has to do with Java on the IBM i platform, specifically, IBM i Java Development Kit 8 64 & 32 bit VMs Fail with “Could not generate ECDHEMLKEM keypair” After IBM i Java Group PTF Apply, which you can read about at this link. Affected IBM i Java Group PTF Levels Providing Java 8 SR8 FP55:
- IBM i 7.6: SF99965 level 4
- IBM i 7.5: SF99955 level 19
- IBM i 7.4: SF99665 level 31
- IBM i 7.3: SF99725 level 40
Now, for the security vulnerability, which is explained in Security Bulletin: IBM i is Affected By Multiple Vulnerabilities in OpenSSL. More information about this issue is at this link. Affected Products and Versions:
IBM i Release 5733-SC1 PTF Number(s)
7.6 SJ11890
SJ11893
7.5 SJ11889
SJ11892
7.4 SJ11888
SJ11891
7.3 SJ11888
SJ11891
Here is the rundown of PTF Groups by IBM i release level since we last published:
PTF Groups 7.6:
- Rational Developer for i
PTF Groups 7.5:
- Rational Developer for i
PTF Groups 7.4:
- Rational Developer for i
PTF Groups 7.3:
- Rational Developer for i
PTF Groups 7.2:
- None
Tip O’ The Week: Considerations with the new GoDaddy R1-to-G2 certificate cross-chain in IBM i Digital Certificate Manager. See https://www.ibm.com/support/pages/node/7290213?myns=swgother&mynp=OCSWG60&mync=E&cm_sp=swgother-_-OCSWG60-_-E. Read the page carefully.
New (or Updated) links added to the ‘Links’ tab in The Guide this week:
- Zend/PHP: PHP on IBM i, 6226878
- Tech Refresh: IBM i Technology Refresh, 668133
New (or Updated) links added to the ‘QMGtools’ tab in The Guide this week:
- None
New (or Updated) links added to the ‘ACS_NAV’ tab in The Guide this week:
- None
New (or Updated) links added to the ‘Prtr Links’ tab in The Guide this week:
- None
New (or Updated) links Redbooks added this week:
- None
New (or Updated) stuff added to REF tab in The Guide this week:
- None
New (or Updated) links in the TAPE tab in The Guide this week:
- None
New (or Updated) links in the WAS tab in The Guide this week:
- None
The Guide at a glance: There were new defectives the week of 10/24/26. Defective PTF rundown – the latest defective for each release. Click on the Defective PTF link for your release in the Guide:
Defect Defective APAR Fixing Date PTF PTF -------- -------- --------- ----------------------- 7.6 10/13/26 SJ09224 DT503471 SJ11741 (When available)(read the recommendations) Read the cover letter-prerequisites! 7.5 10/13/26 SJ09225 DT503471 SJ11742 (When available)(read the recommendations) Read the cover letter-prerequisites! 7.4 09/21/26 MJ09796 DT501201 MJ11494 Same as above, Please read the Cover letter MJ09260 (When available)(read the recommendations) Read the cover letter-prerequisites! 7.3 04/10/26 SJ08674 DT467722 SJ09200 (When available)(read the recommendations)
Be sure to access the link in The Guide for further details.
Below is the usual archive of the IBM i PTF Guide to help you work through the PTFs in chronological order:
October 24, 2026: Volume 28, Number 38
October 17, 2026: Volume 28, Number 37
October 12, 2026: Volume 28, Number 36
October 3, 2026: Volume 28, Number 35
September 26, 2026: Volume 28, Number 34
September 19, 2026: Volume 28, Number 33
September 12, 2026: Volume 28, Number 32
September 4, 2026: Volume 28, Number 31
August 29, 2026: Volume 28, Number 30
August 22, 2026: Volume 28, Number 29
August 15, 2026: Volume 28, Number 28
August 8, 2026: Volume 28, Number 27
August 1, 2026: Volume 28, Number 26
July 26, 2026: Volume 28, Number 25
July 18, 2026: Volume 28, Number 24
July 11, 2026: Volume 28, Number 23
July 4, 2026: Volume 28, Number 22
June 13, 2026: Volume 28, Number 21
June 6, 2026: Volume 28, Number 20
May 30, 2026: Volume 28, Number 19
May 23, 2026: Volume 28, Number 18
April 25, 2026: Volume 28, Number 17
April 18, 2026: Volume 28, Number 16
April 11, 2026: Volume 28, Number 15
April 4, 2026: Volume 28, Number 14
March 28, 2026: Volume 28, Number 13
March 23, 2026: Volume 28, Number 12
March 14, 2026: Volume 28, Number 11
March 7, 2026: Volume 28, Number 10
February 28, 2026: Volume 28, Number 09
February 21, 2026: Volume 28, Number 08
February 14, 2026: Volume 28, Number 07
February 7, 2026: Volume 28, Number 06
January 31, 2026: Volume 28, Number 05
January 24, 2026: Volume 28, Number 04
January 17, 2026: Volume 28, Number 03
January 10, 2026: Volume 28, Number 02
January 3, 2026: Volume 28, Number 01
December 27, 2025: Volume 27, Number 52
December 20, 2025: Volume 27, Number 51
December 13, 2025: Volume 27, Number 50
November 29, 2025: Volume 27, Number 48
November 22, 2025: Volume 27, Number 47
November 15, 2025: Volume 27, Number 46
November 8, 2025: Volume 27, Number 45
November 1, 2025: Volume 27, Number 44
October 25, 2025: Volume 27, Number 43
October 18, 2025: Volume 27, Number 42
October 11, 2025: Volume 27, Number 41
October 4, 2025: Volume 27, Number 40
September 27, 2025: Volume 27, Number 39
September 20, 2025: Volume 27, Number 38
September 13, 2025: Volume 27, Number 37
September 6, 2025: Volume 27, Number 36
August 30, 2025: Volume 27, Number 35
August 23, 2025: Volume 27, Number 34
August 16, 2025: Volume 27, Number 33
August 9, 2025: Volume 27, Number 32
August 2, 2025: Volume 27, Number 31
July 26, 2025: Volume 27, Number 30
July 19, 2025: Volume 27, Number 29
July 12, 2025: Volume 27, Number 28
July 5, 2025: Volume 27, Number 27
June 28, 2025: Volume 27, Number 26
June 21, 2025: Volume 27, Number 25
June 14, 2025: Volume 27, Number 24
June 7, 2025: Volume 27, Number 23
May 31, 2025: Volume 27, Number 22
May 24, 2025: Volume 27, Number 21
May 17, 2025: Volume 27, Number 20
May 10, 2025: Volume 27, Number 19
May 3, 2025: Volume 27, Number 18
April 26, 2025: Volume 27, Number 17
April 21, 2025: Volume 27, Number 16
April 12, 2025: Volume 27, Number 15
April 5, 2025: Volume 27, Number 14
March 29, 2025: Volume 27, Number 13
March 22, 2025: Volume 27, Number 12
March 15, 2025: Volume 27, Number 11
March 8, 2025: Volume 27, Number 10
March 1, 2025: Volume 27, Number 09
February 22, 2025: Volume 27, Number 08
February 15, 2025: Volume 27, Number 07
February 8, 2025: Volume 27, Number 06
February 1, 2025: Volume 27, Number 05
January 25, 2025: Volume 27, Number 04
January 18, 2025: Volume 27, Number 03
January 11, 2025: Volume 27, Number 02
January 04, 2025: Volume 27, Number 01
December 21, 2024: Volume 26, Number 50
December 14, 2024: Volume 26, Number 49
December 7, 2024: Volume 26, Number 48
November 30, 2024: Volume 26, Number 47
November 23, 2024: Volume 26, Number 46
November 16, 2024: Volume 26, Number 45
November 9, 2024: Volume 26, Number 44
November 2, 2024: Volume 26, Number 43
October 26, 2024: Volume 26, Number 42
October 19, 2024: Volume 26, Number 41
